What is the energy (kJ/mol) associated with the de-excitation of an electron from `n=6` to `n=2` in `He^(+)` ion?

What is the energy in eV requried to excite the electron from n=1 to n=2 state in hydrogen atom? (n=principal quantum number)

What is the energy in eV requried to excite the electron from n=1 to n=2 state in hydrogen atom? (n=principal quantum number)

The energy (in eV) required to excite an electron from n = 2 to n = 4 state in hydrogen atom is

The energy ( in eV ) required to excite an electron from n = 2 to n = 4 state in hydrogen atom is

The energy ( in eV ) required to excite an electron from n = 2 to n = 4 state in hydrogen atom is

The energy (in W) required to excite an electron from n = 2 to n = 4 state in hydrogen atom

What is the wavelength in nm of the spectral line associated with a transition from n=3 to n= 2 for the Li^(2+) ion?

What is the wavelength in nm of the spectral line associated with a transition from n=3 to n= 2 for the Li^(2+) ion?

What is the wavelength in nm of the spectral line associated with a transition from n=3 to n= 2 for the Li^(2+) ion?