A neutral atom is made up of electrons moving around a nucleus. Protons and neutrons are found in the nucleus. Which statement about the atom has to be correct?
- AThe number of electrons is equal to the number of neutrons.
- BThe number of electrons is equal to the number of protons.
- CThe number of neutrons is equal to the number of protons.
- DThe number of electrons, neutrons and protons are all different.