Book Online Demo
Check Your IQ
Try Test

Courses

Dropper NEET CourseDropper JEE CourseClass - 12 NEET CourseClass - 12 JEE CourseClass - 11 NEET CourseClass - 11 JEE CourseClass - 10 Foundation NEET CourseClass - 10 Foundation JEE CourseClass - 10 CBSE CourseClass - 9 Foundation NEET CourseClass - 9 Foundation JEE CourseClass -9 CBSE CourseClass - 8 CBSE CourseClass - 7 CBSE CourseClass - 6 CBSE Course

Q.

In the Modern periodic table, calcium (atomic number 20) is surrounded by elements with atomic numbers 12, 19, 21 and 38. Which of these have physical and chemical properties resembling calcium?


see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya

a

Atomic number 12 and 38

b

Atomic number 19 and 21

c

Atomic number 21 and 38

d

Atomic number 12 and 19 

answer is A.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

Concept- The modern periodic table is a visual representation of chemical elements that are ordered according to their atomic number, chemically related properties, and electronic configuration. The periodic chart divides elements into two categories: groups and periods. Periods are horizontal rows, while groups are vertical columns.
The electrical configuration of the outermost shells of elements belonging to the same group will be similar, and as a result, these elements will have comparable chemical and physical characteristics.
We only need to identify the elements that share the same electrical configuration as calcium and so belong to the same group in order to identify those that share the physical and chemical characteristics of calcium (Group II).
The electrical arrangement of calcium is comparable to that of the elements with atomic numbers 12 and 38. They are a part of the same group as well (Group II).
Therefore, substances with atomic numbers 12 and 38 will resemble calcium in terms of their physical and chemical characteristics.
Hence the correct answer is option 1).
 
Watch 3-min video & get full concept clarity

tricks from toppers of Infinity Learn

Related Blogs
Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
Result Producing online coaching for JEE/NEET of south India
Largest All India Test Series for JEE/NEET
Best Books for IIT JEE
Best Books for NEET
score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

Related Blogs
Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
Result Producing online coaching for JEE/NEET of south India
Largest All India Test Series for JEE/NEET
Best Books for IIT JEE
Best Books for NEET
whats app icon
In the Modern periodic table, calcium (atomic number 20) is surrounded by elements with atomic numbers 12, 19, 21 and 38. Which of these have physical and chemical properties resembling calcium?