Which energy level in `Li^(2+)` has same energy as the fourth energy level of hydrogen atom?

Explanation

To find which energy level in `Li^(2+)` has the same energy as the fourth energy level of a hydrogen atom, we can use the Bohr model of the atom. The energy of an electron in a hydrogen-like atom can be expressed using the formula:

\[ E = -\frac{E_0 Z^2}{n^2} \]

Where:
- \( E \) is the energy of the electron,
- \( E_0 \) is a constant,
- \( Z \) is the atomic number,
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