In the ground state of the hydrogen atom, the electron has a total energy of -13.6 eV. What are (a) its kinetic energy and (b) its potential energy if the electron is one Bohr radius from the central nucleus?

Explanation

To solve the problem, we need to find the kinetic energy (KE) and potential energy (PE) of the electron in the ground state of the hydrogen atom, given that the total energy (E) is -13.6 eV.

### Step-by-Step Solution:

1. **Understanding Total Energy**:
The total energy (E) of the electron in the ground state of the hydrogen atom is given as:
\[
E = -13.6 \, \text{eV}
...