Why three particles are found in an atom?

An atom consists of three primary subatomic particles: protons, neutrons, and electrons. Protons, which are positively charged, and neutrons, which are neutral, reside in the nucleus and contribute to the atom's mass. Electrons are negatively charged and orbit around the nucleus, balancing the positive charge of protons and enabling chemical bonding. Together, these particles determine the atom's identity, stability, and behavior in chemical reactions.