Atoms are primarily composed of which of the following particles?

Atoms are primarily composed of protons, neutrons, and electrons. Protons and neutrons reside in the atom's nucleus and provide most of the atom's mass. Protons carry a positive charge, while neutrons are neutral. Electrons, which are negatively charged, orbit the nucleus and play a critical role in chemical bonding and interactions. This combination of protons, neutrons, and electrons is what defines the structure and properties of an atom, making this the most accurate description of atomic composition within the given options.

The other choices either omit essential components of an atom or include terms that refer to groups of atoms or variations of elements rather than the fundamental particles that compose an atom.