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

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

Answer: (C)

Verified step by step guidance

1. Recall the basic structure of an atom: it consists of a nucleus and an electron cloud surrounding it.
2. Understand that the nucleus contains particles called protons and neutrons, which are collectively known as nucleons.
3. Recognize that electrons are negatively charged particles that orbit the nucleus in the electron cloud, not inside the nucleus.
4. Therefore, identify that the particles found inside the nucleus are protons (positively charged) and neutrons (neutral charge).
5. Conclude that the correct answer is 'Protons and neutrons' because electrons are not located in the nucleus.