Question

Which of the following are isobars?

i) ${}_{18}^{40}Ar$
ii) ${}_6^{14}C$
iii) ${}_{20}^{40}Ca$
iv) ${}_7^{14}N$

• A. [i, ii] and [iii, iv]
• B. [i, iii] and [ii, iv]
• C. [i, iv] and [ii, iii]
• D. None of these

Answer 1

The correct option is B [i, iii] and [ii, iv]

What are Isobars?

Isobars are atoms of different elements which have the same atomic mass number.

An element can be represented like

${}_{AtomicNo}^{MassNo}X$