Question

what is isotopes write with example

Answer 1

The number of nucleons (both protons and neutrons) in the nucleus is the atom's mass number, and each isotope of a given elementhas a different mass number. For example, carbon-12, carbon-13 and carbon-14 are three isotopes of the element carbon with mass numbers 12, 13 and 14 respectively.

Answer 2

Isotopes are variants of a particular chemical element which differ in neutron number. All isotopes of a given element have the same number of protons in each atom

example -- Iodine-131. It is an isotope because it contains a different number of neutrons from the element iodine. ...