What is the difference between a proton and a photon?

Explanation

To understand the difference between a proton and a photon, we can break it down into several key points:

### Step-by-Step Solution:

1. **Definition of Proton**:
- A proton is a fundamental particle that is a constituent of atomic matter. It is classified as a baryon and is found in the nucleus of an atom.

**Hint**: Remember that protons are part of the atomic structure and contribute to the mass of an atom.
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