Quantized Expression of electrostatic Force of Hydrogen Atom

The force of each state of the hydrogen atom is determined by the value of the Quantum number (n). $F_n=\frac{F_0}{n^4}$ where the $F_0=\frac{e^2}{4\pi\epsilon_0a_0^2}$ and $a_0$ is bohr radius. as n increases, the force level separation decreases rapidly. since n can take all integral values, the force spectrum of the hydrogen atom contains an infinite number of discrete force levels.