Question

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

• A. $Element{X}_{32}^{77}$
• B. $Element{X}_{33}^{71}$
• C. $Element{X}_{34}^{77}$
• D. $Element{X}_{34}^{78}$

Answer 1

The correct option is A $Element{X}_{32}^{77}$

Isotopes have same atomic number (Z) but different mass number (A). Therefore, ${}_{32}G{e}^{76}$ and ${}_{32}G{e}^{77}$ are isotopes.