If number of electrons in an atom is 8 and number of protons is also 8, then (i) what is the atomic number of the atom? and (ii) what is the charge on the atoms ?

Explanation

(a) Atomic number is equal to the number of protons in one atom. Since this atom contains 8 protons, so the atomic number is 8
(b) This atom contains an equal number of positively charged protons and negatively charged electrons (8 each), so it has no overall charge. That is, the charge on this atom is 0 (zero).