Question

The expression for energy of an electron in bohr orbit of hydrogen like species is

Answer 1

The total energy of an electron in the first Bohr orbit of hydrogen atom is -13.6eV. So the Potentital energy of an electron in the first Bohr orbit of hydrogen atom=2*(-13.6) eV= -27.2 eV. Kinetic and potential energy of atoms result from the motion of electron.