If a species has $16$ protons,$18$ electrons and $16$ neutrons,find the species and its charge.

The introduction of a neutron into the nuclear composition of an atom would lead to a change in

The number of electrons in a neutral atom of an element is equal to its

What are nuclides?

The mass number of an anion,$X^{3-}$,is $14$. If there are $10$ electrons in the anion,the number of neutrons in the nucleus of an atom of the element $X$ is:

Isotopes are those which contain