Which combination of subatomic particles forms a typical atom?

• A. Protons and neutrons only
• B. Protons, neutrons, and electrons
• C. Electrons and neutrons only
• D. Protons and electrons only

Answer: (B)

Verified step by step guidance

1. Understand that a typical atom consists of three main types of subatomic particles: protons, neutrons, and electrons.
2. Recall that protons are positively charged particles located in the nucleus of the atom.
3. Recognize that neutrons are neutral particles, also located in the nucleus, which contribute to the atom's mass but have no charge.
4. Know that electrons are negatively charged particles that orbit the nucleus in electron clouds or shells.
5. Combine this information to conclude that a typical atom is formed by protons, neutrons, and electrons together.