Which subatomic particles are found in the nucleus of an atom?

• A. Protons and neutrons
• B. Electrons and protons
• C. Neutrons and electrons
• D. Only protons

Answer: (A)

Verified step by step guidance

1. Recall the structure of an atom, which consists of a nucleus and an electron cloud surrounding it.
2. Understand that the nucleus contains particles that contribute most of the atom's mass.
3. Identify the subatomic particles: protons, neutrons, and electrons.
4. Know that protons and neutrons are located inside the nucleus, while electrons orbit around the nucleus.
5. Conclude that the subatomic particles found in the nucleus are protons and neutrons.