A new scale of electronegativity on the basis of calculations of effective nuclear charges from X-ray spectroscopic data

It has been shown earlier by Mande and Damle (1965) that screening constants for orbital energies can be calculated from Dirac's relativistic equation using X-ray spectroscopic data. This work is now extended to calculate the effective nuclear charge for the valence states of atoms of a number of elements. Using the values of the effective nuclear charge, a new scale of electronegativity, consistent with Pauling's original definition, has been constructed. This method has the advantage that it does not use any arbitrary method of determining the screening constants. The merits of the new scale are discussed.