Question

Define isobars and isotopes.

Answer 1

Isobars: The isotopes of different elements having the same atomic weight are termed as isobars.

For example , ${}^{40}S{,}^{40}Cl{,}^{40}Ar$ and ${}^{40}K$ are a series of isobars.

Isotopes: Isotopes are the atoms of the same element that have the same number of protons but the different numbers of neutrons.

For example, the isotopes of carbon are ${}^{12}C$ and ${}^{14}C$