An electron of a hydrogen like atom is in excited, state. If total energy of the electron is -4.6 eV, then evaluate
(i) the kinetic energy and
(ii) the de-Broglie wavelength of the electron .

Explanation

To solve the problem step by step, we will address each part of the question systematically.

### Given:
- Total energy of the electron, \( E = -4.6 \, \text{eV} \)

### (i) To find the Kinetic Energy (KE):

1. **Understanding the relationship between total energy and kinetic energy**:
...