GENERAL KNOWLEDGE

Detailed explanation-1: -Nuclei with the same number of protons but a different number of neutrons are called isobars .

Detailed explanation-2: -Isotopes are members of a family of an element that all have the same number of protons but different numbers of neutrons. The number of protons in a nucleus determines the element’s atomic number on the Periodic Table. For example, carbon has six protons and is atomic number 6.

Detailed explanation-3: -Isotopes are atoms with the same number of protons, but differing numbers of neutrons .

Detailed explanation-4: -The number of protons in all the atoms of a particular element is same, therefore to have different mass numbers, isotopes contain different number of neutrons.