The ionization energy of hydrogen is $13.6 \text{ eV}$. The energy of the photon released when an electron jumps from the first excited state $(n=2)$ to the ground state of a hydrogen atom is (in $\text{ eV}$)

The ionisation potential of hydrogen atom is $13.6 \ V$. The energy required to remove an electron from the second orbit of hydrogen is......$eV$.

The energy levels of an electron in an atom are shown. Which transition of the electron represents the emission of a photon with the highest energy?

The minimum energy required to excite a hydrogen atom from its ground state is.....$ eV$.

The number of spectral lines emitted by atomic hydrogen that is in the $4^{\text{th}}$ energy level is

In an inelastic collision,an electron excites a hydrogen atom from its ground state to an $M$-shell state. $A$ second electron collides instantaneously with the excited hydrogen atom in the $M$-state and ionizes it. At least how much energy must the second electron transfer to the atom in the $M$-state?