The energy released when electrons is added to a neutral gaseous atom is called ------------- of the atom.

According to Hund's rule the electronic configuration of N atom is

The total energy of the electron in an hydrogen atom is En = -13.6/n^2 eV What is the significance of the negative sign?

What is the energy power by an electron when n=10?

Negative electron gain ethalpy of fluorine atom is less than that of chlorine atom. Why?

The energies of the electron in the second and the third Bohr orbits of the hydrogen atoms are -5.42xx10^(19)J and -2.41xx10^(19)J respectively. Calculate the wavelength (in S.I. unit) of the emitted radiation, when the electron jumps from the third to the second orbit.

Calculate the energy emitted in terms of wave mumber when the electrons of hydrogen atom jumps from second to first orbit.

Deduce the expression for the total energy of the electron in te n orbnit of a hydrogen atom in the Bohr model.