Here's why:

* Protons: Positively charged particles found in the nucleus of an atom.

* Electrons: Negatively charged particles that orbit the nucleus.

* Neutrons: Neutral particles also found in the nucleus.

Since protons are positively charged and electrons are negatively charged, they balance each other out. If an atom has an equal number of protons and electrons, the positive and negative charges cancel each other out, resulting in a neutral atom.