How are elements classified in the periodic table?

The subatomic particles that make up an atom are protons, neutrons, and electrons. The atomic number and atomic mass of the atom are needed to determine how many protons and neutrons are present in it. The periodic table provides information on the arrangement of the elements. The periodic table is used to determine the atomic mass and number of atoms. Elements are grouped in the periodic table in increasing order of their atomic numbers. The atomic number of an element can be estimated from the location of an atom or element in the periodic table.

The elements in the current periodic table are arranged in increasing order of atomic number. The quantity of protons in an atom's nucleus is known as the atomic number. The identification of an element is determined by its proton count (i.e., an element with 6 protons is a carbon atom, no matter how many neutrons may be present). The amount of protons dictates how many electrons surround the nucleus, and how these electrons are arranged defines the majority of an element's chemical behavior.

Hence, option B is correct.