Which of the following lists correctly identifies the three main types of subatomic particles found in atoms?

• A. Neutrons, positrons, and electrons
• B. Protons, neutrons, and electrons
• C. Electrons, quarks, and protons
• D. Protons, photons, and electrons

Answer: (B)

Verified step by step guidance

1. Recall that atoms are composed of three main types of subatomic particles: protons, neutrons, and electrons.
2. Understand the role of each particle: protons carry a positive charge, neutrons are neutral (no charge), and electrons carry a negative charge.
3. Recognize that positrons are not a fundamental component of atoms; they are the antimatter counterparts of electrons.
4. Note that quarks are fundamental particles that make up protons and neutrons, but they are not considered one of the three main subatomic particles themselves.
5. Photons are particles of light and do not make up atoms, so they are not included in the list of subatomic particles.