What is the length of the minor axes in the L shell of hydrogen atom? 

Explanation

To find the length of the minor axis in the L shell (n=2) of a hydrogen atom, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Bohr Radius for the L Shell:**
The Bohr radius (a₀) is given as 0.529 Å (angstrom). For the L shell, which corresponds to n=2, we can calculate the radius as:
\[
r = n^2 \cdot a_0 = 2^2 \cdot 0.529 \, \text{Å} = 4 \cdot 0.529 \, \text{Å} = 2.116 \, \text{Å}
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