Question

What is isotopes ??? ​

Answer 1

Answer:

Isotopes are variants of a particular chemical element which differ in neutron number, and consequently in nucleon number.

Answer 2

Answer:

An isotope of a chemical element is an atom that has a different number of neutrons (that is, a greater or lesser atomic mass) than the standard for that element. The atomic number is the number of protons in an atom's nucleus.