For the hydrogen atom, the energy of the electron is defined by the factor $E_n=-13.58/n^{2}eV$. Here n is positive integer. The minimum quantity of energy which it can absorb in its primitive stage is:

For the hydrogen atom, the energy of the electron in the $n$th orbit is given by $E=\frac{-13.6}{n^2}eV$, where $n$ is an integer. The smallest amount of energy that a hydrogen atom can absorb in its ground state is: