Which symbols are used to represent different Bohr's orbits?

Explanation

To answer the question "Which symbols are used to represent different Bohr's orbits?", we can break down the solution into clear steps:

### Step-by-Step Solution:

1. **Understanding Bohr's Model**:
- Bohr's model describes the atom as having a nucleus surrounded by electrons that move in circular paths called orbits.

2. **Identifying the Orbits**:
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