Question

Write brief notes on isobar.

Answer 1

ISOBARS:

1. The atoms of different elements with different atomic numbers, which have the same mass number are called isobars.
2. Isobars contain different numbers of electrons, protons, and neutrons.

Example:

${}_7{}^{}\mathrm{N}^{14}\mathrm{and}{}_6{}^{}\mathrm{C}^{14}$,

${}_{18}{}^{}\mathrm{Ar}^{40}\mathrm{and}{}_{20}{}^{}\mathrm{Ca}^{40}$

ISOBAR	${}_{18}{}^{}\mathrm{Ar}^{40}$	${}_{20}{}^{}\mathrm{Ca}^{40}$
Atomic number	18	20
Mass number	40	40
Number of electrons	18	20
Number of protons	18	20
Number of neutrons	22	20