{"id":734230,"date":"2024-09-20T13:19:52","date_gmt":"2024-09-20T07:49:52","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/?p=734230"},"modified":"2024-09-20T15:17:23","modified_gmt":"2024-09-20T09:47:23","slug":"free-online-quizzes-for-class-9-science-chapter-4-structure-of-the-atom","status":"publish","type":"post","link":"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/","title":{"rendered":"Free Online Quizzes for Class 9 Science Chapter 4 &#8211; Structure of the Atom"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_37 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" style=\"display: none;\"><label for=\"item\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input type=\"checkbox\" id=\"item\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' style='display:block'><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#Class_9_Science_Chapter_4_-_Structure_of_the_Atom_Quiz_with_Answer\" title=\"Class 9 Science Chapter 4 &#8211; Structure of the Atom Quiz with Answer\">Class 9 Science Chapter 4 &#8211; Structure of the Atom Quiz with Answer<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#Class_9_Chemistry_Chapter_4_-_Structure_of_the_Atom\" title=\"Class 9 Chemistry Chapter 4 &#8211; Structure of the Atom\">Class 9 Chemistry Chapter 4 &#8211; Structure of the Atom<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#Overview_of_Class_9_Chemistry_Science_Chapter_4_-_Structure_of_the_Atom\" title=\"Overview of Class 9 Chemistry Science Chapter 4 &#8211; Structure of the Atom\">Overview of Class 9 Chemistry Science Chapter 4 &#8211; Structure of the Atom<\/a><ul class='ez-toc-list-level-4'><li class='ez-toc-heading-level-4'><ul class='ez-toc-list-level-4'><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#1_Early_Models_of_the_Atom\" title=\"1. Early Models of the Atom:\">1. Early Models of the Atom:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#2_Subatomic_Particles\" title=\"2. Subatomic Particles:\">2. Subatomic Particles:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#3_Bohrs_Model_of_the_Atom\" title=\"3. Bohr\u2019s Model of the Atom:\">3. Bohr\u2019s Model of the Atom:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#4_Discovery_of_Neutrons\" title=\"4. Discovery of Neutrons:\">4. Discovery of Neutrons:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#5_Structure_of_the_Atom\" title=\"5. Structure of the Atom:\">5. Structure of the Atom:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#6_Valency\" title=\"6. Valency:\">6. Valency:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#7_Atomic_Number_and_Mass_Number\" title=\"7. Atomic Number and Mass Number:\">7. Atomic Number and Mass Number:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#8_Isotopes\" title=\"8. Isotopes:\">8. Isotopes:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#9_Isobars\" title=\"9. Isobars:\">9. Isobars:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#Key_Concepts_to_Remember\" title=\"Key Concepts to Remember:\">Key Concepts to Remember:<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#Quiz_on_Structure_of_the_Atom_Class_9_Science\" title=\"Quiz on Structure of the Atom Class 9 Science\">Quiz on Structure of the Atom Class 9 Science<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#Quiz_1\" title=\"Quiz 1\">Quiz 1<\/a><ul class='ez-toc-list-level-5'><li class='ez-toc-heading-level-5'><ul class='ez-toc-list-level-5'><li class='ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#Structure_of_the_Atom_Quiz_1\" title=\"Structure of the Atom Quiz 1\">Structure of the Atom Quiz 1<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#Quiz_2\" title=\"Quiz 2\">Quiz 2<\/a><ul class='ez-toc-list-level-5'><li class='ez-toc-heading-level-5'><ul class='ez-toc-list-level-5'><li class='ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#Structure_of_the_Atom_Quiz_2\" title=\"Structure of the Atom Quiz 2\">Structure of the Atom Quiz 2<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#Quiz_3\" title=\"Quiz 3\">Quiz 3<\/a><ul class='ez-toc-list-level-5'><li class='ez-toc-heading-level-5'><ul class='ez-toc-list-level-5'><li class='ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#Structure_of_the_Atom_Quiz_3\" title=\"Structure of the Atom Quiz 3\">Structure of the Atom Quiz 3<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#Quiz_4\" title=\"Quiz 4\">Quiz 4<\/a><ul class='ez-toc-list-level-5'><li class='ez-toc-heading-level-5'><ul class='ez-toc-list-level-5'><li class='ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#Structure_of_the_Atom_Quiz_4\" title=\"Structure of the Atom Quiz 4\">Structure of the Atom Quiz 4<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#Quiz_5\" title=\"Quiz 5\">Quiz 5<\/a><ul class='ez-toc-list-level-5'><li class='ez-toc-heading-level-5'><ul class='ez-toc-list-level-5'><li class='ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#Structure_of_the_Atom_Quiz_5\" title=\"Structure of the Atom Quiz 5\">Structure of the Atom Quiz 5<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#Important_Topics_of_Class_9_Science_Chapter_4-_Structure_of_the_Atom\" title=\"Important Topics of Class 9 Science Chapter 4-  Structure of the Atom\">Important Topics of Class 9 Science Chapter 4-  Structure of the Atom<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#Free_Online_Quizzes_for_Class_9_Science_Structure_of_the_Atom_FAQs\" title=\"Free Online Quizzes for Class 9 Science Structure of the Atom FAQs\">Free Online Quizzes for Class 9 Science Structure of the Atom FAQs<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#What_is_atom_structure_in_Class_9\" title=\"What is atom structure in Class 9?\">What is atom structure in Class 9?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#What_is_the_structure_of_the_atomic_model\" title=\"What is the structure of the atomic model?\">What is the structure of the atomic model?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#What_are_the_4_atomic_structures\" title=\"What are the 4 atomic structures?\">What are the 4 atomic structures?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#What_is_the_structure_of_an_atom_in_Class_9\" title=\"What is the structure of an atom in Class 9?\">What is the structure of an atom in Class 9?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#What_is_the_structure_of_the_atom\" title=\"What is the structure of the atom?\">What is the structure of the atom?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/#What_is_the_structure_of_the_atom_in_Class_9_Chemistry\" title=\"What is the structure of the atom in Class 9 Chemistry?\">What is the structure of the atom in Class 9 Chemistry?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<p>Looking to test your knowledge of<strong><a href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science\/\"> Class 9 Science<\/a><\/strong> Chapter 4: Structure of the Atom! Our free online quiz is the perfect way to enhance your understanding of key concepts, such as mixtures, pure substances, solutions, and separation techniques. Quizzes are an excellent tool to revise and reinforce what you\u2019ve learned in class. By solving quizzes, you can identify areas where you need more practice, sharpen your problem-solving skills, and get a real-time assessment of your knowledge.<\/p>\n<div class=\"code-block code-block-1\">\n<div class=\"wpcf7\" dir=\"ltr\" lang=\"en-US\" role=\"form\">\n<h2><span class=\"ez-toc-section\" id=\"Class_9_Science_Chapter_4_-_Structure_of_the_Atom_Quiz_with_Answer\"><\/span>Class 9 Science Chapter 4 &#8211; Structure of the Atom Quiz with Answer<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>We provide 5 quizzes for Chapter 4 &#8211; Structure of the Atom to help you thoroughly practice and grasp the important concepts. Each quiz contains 10 multiple-choice questions (MCQs) designed to test your understanding of various topics covered in the chapter.<\/p>\n<div class=\"code-block code-block-3\">\n<h2 class=\"mb-2 mt-6 text-lg first:mt-3\"><span class=\"ez-toc-section\" id=\"Class_9_Chemistry_Chapter_4_-_Structure_of_the_Atom\"><\/span>Class 9 Chemistry Chapter 4 &#8211; Structure of the Atom<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Understanding the atoms and molecules is fundamental in science. Chapter 4 of Class 9 Science, <strong>\u201cStructure of the Atom\u201d<\/strong>, introduces you to the important concepts of pure and impure substances, mixtures, and solutions. This chapter builds the foundation for more advanced topics in chemistry, making it essential for students to grasp these concepts early on. By studying this chapter, you\u2019ll develop a deeper understanding of how the substances around us are classified and how they interact, which is crucial for real-world applications.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Overview_of_Class_9_Chemistry_Science_Chapter_4_-_Structure_of_the_Atom\"><\/span>Overview of Class 9 Chemistry Science Chapter 4 &#8211; Structure of the Atom<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>This chapter in Class 9 Science focuses on the fundamental concept of the atom and its structure. Here&#8217;s a breakdown of what you will learn:<\/p>\n<h4><span class=\"ez-toc-section\" id=\"1_Early_Models_of_the_Atom\"><\/span>1. Early Models of the Atom:<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li><strong>Dalton\u2019s Atomic Theory<\/strong>: John Dalton was the first to propose that matter is made up of indivisible atoms.<\/li>\n<li><strong>Thomson&#8217;s Model<\/strong>: J.J. Thomson suggested the &#8220;plum pudding model,&#8221; where the atom is a positive sphere with electrons embedded in it.<\/li>\n<li><strong>Rutherford\u2019s Model<\/strong>: Through his gold foil experiment, Rutherford proposed that the atom has a small, dense nucleus with electrons revolving around it.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"2_Subatomic_Particles\"><\/span>2. Subatomic Particles:<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li><strong>Protons<\/strong>: Positively charged particles found in the nucleus.<\/li>\n<li><strong>Neutrons<\/strong>: Neutral particles present in the nucleus.<\/li>\n<li><strong>Electrons<\/strong>: Negatively charged particles revolving around the nucleus.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"3_Bohrs_Model_of_the_Atom\"><\/span>3. Bohr\u2019s Model of the Atom:<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>Niels Bohr refined Rutherford\u2019s model by introducing fixed orbits for electrons. Electrons revolve in specific energy levels without losing energy.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"4_Discovery_of_Neutrons\"><\/span>4. Discovery of Neutrons:<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>James Chadwick discovered neutrons, which helped explain atomic mass.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"5_Structure_of_the_Atom\"><\/span>5. Structure of the Atom:<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li><strong>Nucleus<\/strong>: Contains protons and neutrons.<\/li>\n<li><strong>Energy Levels or Shells<\/strong>: Electrons revolve in defined orbits or shells around the nucleus. Each shell has a specific energy level.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"6_Valency\"><\/span>6. Valency:<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>Valency is the combining capacity of an atom. It is determined by the number of electrons in the outermost shell.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"7_Atomic_Number_and_Mass_Number\"><\/span>7. Atomic Number and Mass Number:<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li><strong>Atomic Number<\/strong>: Number of protons (and electrons) in an atom.<\/li>\n<li><strong>Mass Number<\/strong>: Sum of protons and neutrons in the nucleus.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"8_Isotopes\"><\/span>8. Isotopes:<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>Atoms of the same element with the same atomic number but different mass numbers (e.g., Carbon-12, Carbon-14).<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"9_Isobars\"><\/span>9. Isobars:<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>Atoms with the same mass number but different atomic numbers (e.g., Argon and Calcium).<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Key_Concepts_to_Remember\"><\/span>Key Concepts to Remember:<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>Atomic models evolved over time to the current understanding.<\/li>\n<li>Atoms are made up of protons, neutrons, and electrons.<\/li>\n<li>Electrons revolve in specific orbits or shells.<\/li>\n<li>The nucleus contains protons and neutrons.<\/li>\n<li>Isotopes and isobars are special types of atomic structures.<\/li>\n<\/ul>\n<h2 class=\"mb-2 mt-6 text-lg first:mt-3\"><span class=\"ez-toc-section\" id=\"Quiz_on_Structure_of_the_Atom_Class_9_Science\"><\/span>Quiz on Structure of the Atom Class 9 Science<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>To help reinforce the concepts learned in this chapter, here are 5 quizzes for Class 9 Science Chapter 4 \u2013 Structure of the Atom along with their answers:<br \/>\nTest your understanding of the basics of pure substances and mixtures. Class 9 Science Chapter 4 \u2013 Structure of the Atom quiz 1 will cover the key concepts from Chapter 4, helping you get started on learning about atoms and molecules.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Quiz_1\"><\/span>Quiz 1<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"card\">\n<div class=\"card-body p-3\">\n<p><span class=\"badge badge-success mb-2\">FREE<\/span><\/p>\n<h5 class=\"card-title mb-1\"><span class=\"ez-toc-section\" id=\"Structure_of_the_Atom_Quiz_1\"><\/span>Structure of the Atom Quiz 1<span class=\"ez-toc-section-end\"><\/span><\/h5>\n<div class=\"d-flex text-muted small mt-2\">\n<div class=\"mr-3\">10 Questions<\/div>\n<div class=\"mr-3\">30 Marks<\/div>\n<div>15 Mins<\/div>\n<\/div>\n<\/div>\n<div class=\"card-footer bg-white border-top-0 text-right\"><a style=\"color: white; font-bold: bolder;\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-atom-quiz-1\/\"><br \/>\n<button class=\"btn btn-info px-4\"><strong>Start Now<\/strong><\/button><\/a><\/div>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"Quiz_2\"><\/span>Quiz 2<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Dive deeper into the types of mixtures and methods to separate them. Class 9 Chemistry Chapter 4 Structure of the Atom quiz 2 focuses on the techniques and examples of mixtures from Chapter 4.<\/p>\n<div class=\"card\">\n<div class=\"card-body p-3\">\n<p><span class=\"badge badge-success mb-2\">FREE<\/span><\/p>\n<h5 class=\"card-title mb-1\"><span class=\"ez-toc-section\" id=\"Structure_of_the_Atom_Quiz_2\"><\/span>Structure of the Atom Quiz 2<span class=\"ez-toc-section-end\"><\/span><\/h5>\n<div class=\"d-flex text-muted small mt-2\">\n<div class=\"mr-3\">10 Questions<\/div>\n<div class=\"mr-3\">30 Marks<\/div>\n<div>15 Mins<\/div>\n<\/div>\n<\/div>\n<div class=\"card-footer bg-white border-top-0 text-right\"><a style=\"color: white; font-bold: bolder;\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-atom-quiz-2\/\"><br \/>\n<button class=\"btn btn-info px-4\"><strong>Start Now<\/strong><\/button><\/a><\/div>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"Quiz_3\"><\/span>Quiz 3<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Explore more about solutions, suspensions, and colloids. Chapter 4 Structure of the Atom quiz 3 will help you understand these concepts better and how they differ from each other.<\/p>\n<div class=\"card\">\n<div class=\"card-body p-3\">\n<p><span class=\"badge badge-success mb-2\">FREE<\/span><\/p>\n<h5 class=\"card-title mb-1\"><span class=\"ez-toc-section\" id=\"Structure_of_the_Atom_Quiz_3\"><\/span>Structure of the Atom Quiz 3<span class=\"ez-toc-section-end\"><\/span><\/h5>\n<div class=\"d-flex text-muted small mt-2\">\n<div class=\"mr-3\">10 Questions<\/div>\n<div class=\"mr-3\">30 Marks<\/div>\n<div>15 Mins<\/div>\n<\/div>\n<\/div>\n<div class=\"card-footer bg-white border-top-0 text-right\"><a style=\"color: white; font-bold: bolder;\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-atom-quiz-3\/\"><br \/>\n<button class=\"btn btn-info px-4\"><strong>Start Now<\/strong><\/button><\/a><\/div>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"Quiz_4\"><\/span>Quiz 4<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Get a clearer picture of the properties of pure substances and mixtures with this quiz 4 Chapter 4 Structure of the Atom. It will test your knowledge on the detailed aspects of Chapter 4.<\/p>\n<div class=\"card\">\n<div class=\"card-body p-3\">\n<p><span class=\"badge badge-success mb-2\">FREE<\/span><\/p>\n<h5 class=\"card-title mb-1\"><span class=\"ez-toc-section\" id=\"Structure_of_the_Atom_Quiz_4\"><\/span>Structure of the Atom Quiz 4<span class=\"ez-toc-section-end\"><\/span><\/h5>\n<div class=\"d-flex text-muted small mt-2\">\n<div class=\"mr-3\">10 Questions<\/div>\n<div class=\"mr-3\">30 Marks<\/div>\n<div>15 Mins<\/div>\n<\/div>\n<\/div>\n<div class=\"card-footer bg-white border-top-0 text-right\"><a style=\"color: white; font-bold: bolder;\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-atom-quiz-4\/\"><br \/>\n<button class=\"btn btn-info px-4\"><strong>Start Now<\/strong><\/button><\/a><\/div>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"Quiz_5\"><\/span>Quiz 5<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Challenge yourself with advanced questions on separating mixtures and understanding the purity of substances. This final quiz 5 on Structure of the Atom will wrap up your learning from Chapter 4.<\/p>\n<div class=\"card\">\n<div class=\"card-body p-3\">\n<p><span class=\"badge badge-success mb-2\">FREE<\/span><\/p>\n<h5 class=\"card-title mb-1\"><span class=\"ez-toc-section\" id=\"Structure_of_the_Atom_Quiz_5\"><\/span>Structure of the Atom Quiz 5<span class=\"ez-toc-section-end\"><\/span><\/h5>\n<div class=\"d-flex text-muted small mt-2\">\n<div class=\"mr-3\">10 Questions<\/div>\n<div class=\"mr-3\">30 Marks<\/div>\n<div>15 Mins<\/div>\n<\/div>\n<\/div>\n<div class=\"card-footer bg-white border-top-0 text-right\"><a style=\"color: white; font-bold: bolder;\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-atom-quiz-5\/\"><br \/>\n<button class=\"btn btn-info px-4\"><strong>Start Now<\/strong><\/button><\/a><\/div>\n<\/div>\n<\/div>\n<div><\/div>\n<div>\n<h2>Important Topics of Class 9 Science Chapter 4-  Structure of the Atom<\/h2>\n<ul>\n<li><strong>Subatomic Particles<\/strong>\n<ul>\n<li>Discovery of electrons, protons, and neutrons.<\/li>\n<li>Properties of subatomic particles.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Thomson\u2019s Model of Atom<\/strong>\n<ul>\n<li>Plum Pudding Model.<\/li>\n<li>Limitations of Thomson\u2019s Model.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Rutherford\u2019s Model of Atom<\/strong>\n<ul>\n<li>Gold Foil Experiment.<\/li>\n<li>Nuclear model and its limitations.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Bohr\u2019s Model of Atom<\/strong>\n<ul>\n<li>Postulates of Bohr&#8217;s atomic model.<\/li>\n<li>Energy levels and orbits of electrons.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Distribution of Electrons (Electronic Configuration)<\/strong>\n<ul>\n<li>Rules for filling electrons in different shells.<\/li>\n<li>2n\u00b2 rule for the maximum number of electrons in shells.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Valency<\/strong>\n<ul>\n<li>Concept of valency based on the electronic configuration.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Isotopes, Isobars, and Isotones<\/strong>\n<ul>\n<li>Definitions and differences.<\/li>\n<li>Examples of each.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Free_Online_Quizzes_for_Class_9_Science_Structure_of_the_Atom_FAQs\"><\/span>Free Online Quizzes for Class 9 Science Structure of the Atom FAQs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/div>\n<\/div>\n<div>\t\t<section class=\"sc_fs_faq sc_card \">\n\t\t\t<div>\n\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"What_is_atom_structure_in_Class_9\"><\/span>What is atom structure in Class 9?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t<p>\n\t\t\t\t\t\tThe structure of an atom includes a central nucleus with protons and neutrons, surrounded by electrons in shells.\t\t\t\t\t<\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"sc_fs_faq sc_card \">\n\t\t\t<div>\n\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"What_is_the_structure_of_the_atomic_model\"><\/span>What is the structure of the atomic model?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t<p>\n\t\t\t\t\t\tThe atomic model has a nucleus at the center, with electrons orbiting around it in fixed paths called shells.\t\t\t\t\t<\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"sc_fs_faq sc_card \">\n\t\t\t<div>\n\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"What_are_the_4_atomic_structures\"><\/span>What are the 4 atomic structures?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t<p>\n\t\t\t\t\t\tThe four atomic models are Dalton\u2019s, Thomson\u2019s, Rutherford\u2019s, and Bohr\u2019s models, showing how atoms evolved over time.\t\t\t\t\t<\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"sc_fs_faq sc_card \">\n\t\t\t<div>\n\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"What_is_the_structure_of_an_atom_in_Class_9\"><\/span>What is the structure of an atom in Class 9?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t<p>\n\t\t\t\t\t\tIn Class 9, an atom consists of a nucleus containing protons and neutrons, with electrons revolving in shells.\t\t\t\t\t<\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"sc_fs_faq sc_card \">\n\t\t\t<div>\n\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"What_is_the_structure_of_the_atom\"><\/span>What is the structure of the atom?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t<p>\n\t\t\t\t\t\tAn atom has a small, dense nucleus with protons and neutrons, while electrons orbit in energy levels around it.\t\t\t\t\t<\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"sc_fs_faq sc_card \">\n\t\t\t<div>\n\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"What_is_the_structure_of_the_atom_in_Class_9_Chemistry\"><\/span>What is the structure of the atom in Class 9 Chemistry?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t<p>\n\t\t\t\t\t\tIn Class 9 Chemistry, the atom is explained as having a nucleus with protons and neutrons, and electrons in specific orbits.\t\t\t\t\t<\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/section>\n\t\t\n<script type=\"application\/ld+json\">\n\t{\n\t\t\"@context\": \"https:\/\/schema.org\",\n\t\t\"@type\": \"FAQPage\",\n\t\t\"mainEntity\": [\n\t\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"What is atom structure in Class 9?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"The structure of an atom includes a central nucleus with protons and neutrons, surrounded by electrons in shells.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"What is the structure of the atomic model?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"The atomic model has a nucleus at the center, with electrons orbiting around it in fixed paths called shells.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"What are the 4 atomic structures?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"The four atomic models are Dalton\u2019s, Thomson\u2019s, Rutherford\u2019s, and Bohr\u2019s models, showing how atoms evolved over time.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"What is the structure of an atom in Class 9?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"In Class 9, an atom consists of a nucleus containing protons and neutrons, with electrons revolving in shells.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"What is the structure of the atom?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"An atom has a small, dense nucleus with protons and neutrons, while electrons orbit in energy levels around it.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"What is the structure of the atom in Class 9 Chemistry?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"In Class 9 Chemistry, the atom is explained as having a nucleus with protons and neutrons, and electrons in specific orbits.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t\t\t\t]\n\t}\n<\/script>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Looking to test your knowledge of Class 9 Science Chapter 4: Structure of the Atom! Our free online quiz is [&hellip;]<\/p>\n","protected":false},"author":56,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"Structure of the Atom","_yoast_wpseo_title":"Free Online Quizzes for Class 9 Science Chapter 4 - Structure of the Atom","_yoast_wpseo_metadesc":"We provide 5 quizzes for Chapter 4 - Structure of the Atom to help you thoroughly practice and grasp the important concepts.","custom_permalink":"free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/"},"categories":[11056],"tags":[],"table_tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Free Online Quizzes for Class 9 Science Chapter 4 - Structure of the Atom<\/title>\n<meta name=\"description\" content=\"We provide 5 quizzes for Chapter 4 - Structure of the Atom to help you thoroughly practice and grasp the important concepts.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-the-atom\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Free Online Quizzes for Class 9 Science Chapter 4 - 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