The orbital angular momentum of an electron in `2s` orbital is ………

Explanation

To find the orbital angular momentum of an electron in the 2s orbital, we can follow these steps:

### Step 1: Identify the Quantum Numbers
The first step is to identify the principal quantum number (n) and the angular quantum number (l) for the 2s orbital.
- For the 2s orbital, the principal quantum number \( n = 2 \).
- The angular quantum number \( l \) for an s orbital is always 0. Therefore, for the 2s orbital, \( l = 0 \).

### Step 2: Use the Formula for Orbital Angular Momentum
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