Explanation:
- An atom contains three subatomic particles- Electron, Proton, and Neutron.
- Electron contains negative charge on it, Proton contains positive charge on it, and Neutron is Neutral particle.
- Magnitude of charges on proton and electron is equal. There are as many protons as electrons in an atom.
- When an atom has equal number of protons and electrons then it will have equal number of positive and negative charges, which will cancel each other.
- Thus the atom has a net zero charge on it and make the atom electrically neutral.
This is the reason why an atom is Neutral.