Calculate the angular momentum of an electron in the second orbit of an atom ?

Explanation

To calculate the angular momentum of an electron in the second orbit of an atom, we can follow these steps:

### Step 1: Understand the formula for angular momentum
According to Bohr's theory, the angular momentum (L) of an electron in an orbit is given by the formula:
\[ L = \frac{n h}{2\pi} \]
where:
- \( n \) is the principal quantum number (orbit number),
- \( h \) is Planck's constant, approximately \( 6.626 \times 10^{-34} \, \text{Joule second} \),
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