Energy of electron in a orbit of H -atom is

If energy of electron in first orbit of H-atom is - y then what will be its energy in fourth excited orbit ?

According to Bohr's theory, energy of electron in n-th orbit of H-atom, E_(n)=-(21.76xx10^(-19))/(n^(2))J . Find the longest wavelength of radiation required to remove one electron from the 3rd orbit of He^(+) ion.

Total energy of electron in orbit of an atom is............. .This indicates that electron............ .

" Kinetic energy of electron in "n''" orbit in H-atom "

Energy of an electron in the second orbit of hydrogen atom is E and the energy of electron in 3rd orbit of He will be

Kinetic energy of electron in n^("th") orbit in H-atom

Energy of an electron in nth orbit of Bohr's H-atom is given by the expression______.

The energy of the electron in the third orbit of H-atom is -1.51 eV. The energy of the electron in first orbit is