Final answer:
Atoms consist of three types of subatomic particles: positively charged protons, neutral neutrons, and negatively charged electrons. Protons and neutrons give the atom its mass, while electrons move around the nucleus and have relatively negligible mass. The correct answer is protons, neutrons, and electrons
Step-by-step explanation:
Atoms are composed of three fundamental subatomic particles: protons, neutrons, and electrons. Protons, which reside in the nucleus of the atom, possess a positive electric charge and contribute to the atom's mass. Neutrons, also located within the nucleus, have no charge (neutral) and similarly contribute to the atom's mass.
Electrons, which have a negative electric charge, orbit the nucleus at high velocities and have a much smaller mass compared to protons and neutrons. The number of protons in an atom's nucleus defines the chemical element, while the balance between the number of protons and electrons determines the overall electrical charge of the atom.