Question

An isotope of $G{e}_{32}^{76}$ is

• A. $G{e}_{32}^{77}$
• B. $A{s}_{33}^{77}$
• C. $S{e}_{34}^{77}$
• D. $S{e}_{34}^{78}$

Answer 1

The correct option is A $G{e}_{32}^{77}$

Isotopes have same atomic numbers but different mass numbers.
An isotope of $G{e}_{32}^{76}$ is $G{e}_{32}^{77}$.
Both have same atomic number $32$ but different mass numbers $76$ and $77$.