Which particles are found in the nucleus of an atom?

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

Answer: (B)

Verified step by step guidance

1. Recall the basic structure of an atom, which consists of a nucleus and an electron cloud surrounding it.
2. Understand that the nucleus is the central part of the atom and contains particles that contribute most of the atom's mass.
3. Identify the particles found in the nucleus: protons, which have a positive charge, and neutrons, which have no charge (neutral).
4. Recognize that electrons are negatively charged particles that orbit the nucleus in the electron cloud, not inside the nucleus.
5. Conclude that the particles found in the nucleus are protons and neutrons, while electrons are located outside the nucleus.