question_answer

The nucleus of an atom consists of :

A)  electrons and protons

B)  electrons, protons and neutrons

C)  electrons and neutrons

D)  neutrons and protons

Correct Answer: D

Solution :

                An atom consists of a nucleus at its centre which consists of neutrons and protons, in a radius of about\[{{10}^{-15}}m\]. Around the nucleus are distributed the electrons.