Which of the following are NOT one of the three main subatomic particles?

The correct answer is that molecules are not one of the three main subatomic particles. In atomic structure, subatomic particles include protons, neutrons, and electrons. Protons and neutrons are found in the nucleus of the atom, while electrons orbit around the nucleus in various energy levels.

Molecules, on the other hand, are formed when two or more atoms are chemically bonded together. They represent a higher level of organization in chemistry, resulting from the combination of atoms that can include different types of elements. Understanding this distinction is crucial in biology and chemistry, as it helps to clarify the building blocks of matter at both atomic and molecular levels.