How many electrons can be filled in all the orbitals with `n+l=5` ?

Explanation

To determine how many electrons can be filled in all the orbitals with \( n + l = 5 \), we can follow these steps:

### Step 1: Identify Possible Values of \( n \) and \( l \)
We know that \( n + l = 5 \). We can find the possible combinations of \( n \) (the principal quantum number) and \( l \) (the azimuthal quantum number) that satisfy this equation.

- If \( n = 5 \), then \( l = 0 \) (which corresponds to the 5s orbital).
- If \( n = 4 \), then \( l = 1 \) (which corresponds to the 4p orbital).
- If \( n = 3 \), then \( l = 2 \) (which corresponds to the 3d orbital).
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