Which of these are present inside a nucleus?

Options

A. Protons
B. Electrons
C. Protons and neutrons
D. Electrons and protons

Answer

**Step-by-Step Solution:**

1. **Understanding the Structure of an Atom:**
- An atom consists of three main components: protons, neutrons, and electrons.

2. **Identifying the Location of Each Component:**
- Electrons are negatively charged particles that orbit around the nucleus of the atom.
- Protons are positively charged particles located inside the nucleus.
- Neutrons are neutral particles that are also found inside the nucleus.

3. **Focusing on the Nucleus:**
- The nucleus is the central part of an atom and contains protons and neutrons.
- Electrons do not reside in the nucleus; they exist in the electron cloud surrounding the nucleus.

4. **Conclusion:**
- Therefore, the components present inside the nucleus are protons and neutrons.

**Final Answer:**
- The particles present inside a nucleus are protons and neutrons.

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