An electron is in one of the `3d` orbitals. Give the possible values of `n, l,` and `m` for this electron.

Explanation

To find the possible values of the quantum numbers \( n \), \( l \), and \( m \) for an electron in a \( 3d \) orbital, we can follow these steps:

### Step 1: Identify the Principal Quantum Number \( n \)
The principal quantum number \( n \) indicates the shell in which the electron is located. For a \( 3d \) orbital, the principal quantum number is:
\[ n = 3 \]

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