What are the three subatomic particles of an atom?

Protons, neutrons, and electrons are the three main subatomic particles found in an atom. Protons have a positive (+) charge. An easy way to remember this is to remember that both proton and positive start with the letter "P." Neutrons have no electrical charge. read more

Subatomic particles are particles that are smaller than the atom. Protons, neutrons, and electrons are the three main subatomic particles found in an atom. Protons have a positive (+) charge. An easy way to remember this is to remember that both proton and positive start with the letter "P." Neutrons have no electrical charge. read more

The three subatomic particles in an atom are protons, neutrons, and electrons: Protons have a relative mass of 1 and a charge of +1, and they are found in the nucleus of an atom. Neutrons have a relative mass of 1 and no charge, and they are also found in the nucleus of an atom. read more

Other particles exist as well, such as alpha and beta particles (which are discussed below). The Bohr model shows the three basic subatomic particles in a simple manner. Most of an atom's mass is in the nucleus—a small, dense area at the center of every atom, composed of nucleons. read more