The number of protons,neutrons and electrons in the ion ${ }_{16}^{32} S^{2-}$ respectively are

An isotone of $_{32}^{76}Ge$ is (one or more are correct)

The pair,in which ions are isoelectronic with $Al^{3+}$ is ..... .

Identify the isoelectronic species from the following.

Two atoms of elements $X$ and $Y$ are isotones of each other. Their mass numbers are $70$ and $72$ respectively. If the atomic number of $X$ is $34$,then the atomic number of $Y$ is ..........

Among the following,the set of isoelectronic ions is: