The energy required to excite an electron from n = 2 to n = 3 energy level is 47.2 eV. The charge of Nucleus around which the electron is revolving is ne, find n. (in terms of no. of protons)

Explanation

To solve the problem, we need to find the charge of the nucleus (Ne) in terms of the number of protons (n) given the energy required to excite an electron from the n=2 to n=3 energy level is 47.2 eV.

### Step-by-Step Solution:

1. **Understand the Energy Levels**:
The energy of an electron in a hydrogen-like atom is given by the formula:
\[
E_n = -\frac{13.6 \, Z^2}{n^2} \, \text{eV}
...