If the number of electrons in an atom is $8$ and the number of protons are also $8$ , then
(i) What is the atomic number of the atom? And
(ii) What is the charge on the atom?

Hint: We have to know that the quantity of protons in a particle is called its nuclear number. This number is vital on the grounds that it is interesting for molecules of a given component. All particles of a component have a similar number of protons, and each component has an alternate number of protons in its molecules.

Complete answer:
We have to see that the nuclear number remarkably recognizes a substance component. It is indistinguishable from the charge number of the core. In an uncharged particle, the nuclear number is likewise equivalent to the quantity of electrons. The amount of the nuclear number and the quantity of neutrons gives the mass number of a molecule. The quantity of protons in the core of the molecule is equivalent to the nuclear number.
In the given details,
The number of electron = $8$
The number of proton = $8$
To find out the atomic number of the atom. By using the following expression,
The number of electrons is equal to the number of protons and the number of protons is equal to the atomic number of the atom.
Therefore,
The atomic number of the atom is $8$ .
Then, the charge on the atom is zero. Where, both the value of protons and electrons are equal.

Note:
We need to know that the nuclear number is the quantity of protons in the core and that is the thing that really decides the character of a component. The mass number is the complete number of protons and neutrons in the core. In this manner nuclear mass gives precise data of a component, thus nuclear number is a higher priority than mass number.