Calculate the energy of an electron in the first Bohr orbit of`He^(+)`.

Explanation

To calculate the energy of an electron in the first Bohr orbit of the helium ion \( He^{+} \), we can follow these steps:

### Step 1: Understand the formula for energy levels in the Bohr model
The energy of an electron in the nth orbit of a hydrogen-like atom is given by the formula:
\[ E_n = -\frac{13.6 \, \text{eV} \cdot Z^2}{n^2} \]
where:
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