List of top Physics Questions on Atomic Masses And Composition Of Nucleus asked in CBSE Class XII

Consider the following nuclides : $^{12}_6\text{C}$, $^{198}_{80}\text{Hg}$, $^{14}_6\text{C}$, $^{197}_{79}\text{Au}$. Group them into isotopes and isotones.

Distinguish between isotopes and isobars, giving one example for each.