The coloured radition with lowest energy is

Name an allotrope of carbon that has lowest energy.

The ionization energy of the electron in the lowest orbit of hydrogen atom is 13.6 eV. The energies required in eV to remove an electron from three lowest energy orbits of hydrogen atom respectively are

The shell which has lowest energy in an atom is

Which orbital does possess the lowest energy in an atom?

Which of the following molecular orbital has the lowest energy ?

Which of the following orbitals has the lowest energy?

Calculate the energy of radition with wave length 500nm.