1. The problem is to understand what subatomic particles are. 2. Subatomic particles are particles smaller than an atom. 3. Atoms are made up of three main types of subatomic particles: protons, neutrons, and electrons. 4. Protons have a positive charge, neutrons have no charge (neutral), and electrons have a negative charge. 5. These particles combine to form atoms, which are the building blocks of matter. 6. Protons and neutrons are located in the nucleus (center) of the atom, while electrons orbit around the nucleus. 7. Understanding subatomic particles is fundamental in physics and chemistry to explain the structure and behavior of matter.