What particles make up an atom?

An atom is made up of three main types of subatomic particles: protons, neutrons, and electrons. Protons are positively charged particles found in the nucleus of the atom, while neutrons are neutral particles that also reside in the nucleus. Electrons are negatively charged particles that orbit the nucleus in various energy levels. The combination of these three particles gives an atom its identity and characteristics.

Protons and neutrons account for most of the atom's mass, while electrons play a crucial role in chemical bonding and reactions. Their arrangement and quantity determine how an atom interacts with other atoms. This fundamental understanding of atomic structure is essential in chemistry, as it lays the groundwork for exploring how elements behave and combine to form compounds.

The other options do not encompass the full picture of atomic structure. The first option mentions only electrons, overlooking the essential roles of protons and neutrons. The second option introduces quarks, which are indeed constituents of protons and neutrons, but it fails to mention the pivotal role that electrons play in the structure of an atom. The last option highlights only neutrons and protons, neglecting the crucial contribution of electrons in defining atomic behavior. Thus, the combination of protons, neutrons, and electrons