# Energy required for the electron excitation in

Question:

Energy required for the electron excitation in $\mathrm{Li}^{++}$from the first to the third Bohr orbit is:

1. (A) $108.8 \mathrm{eV}$

2. $122.4 \mathrm{eV}$

3. $12.1 \mathrm{eV}$

4. $36.3 \mathrm{eV}$

Correct Option: 1

Solution: