What are isotopes and isobars?

Isotopes: These are the nuclei having the same atomic number (Z) but different mass number (A).

Example:

· H11, H12 and H13 are isotopes of hydrogen

· O816and O817 are isotopes of oxygen

Isobars: These are the nuclei having the same mass number (A) but different atomic number (Z).

Example:

· Na1122 and Ne1022 are isobars with same mass number 22

Na1124 and Mg1224 are isobars with same mass number 24