Allred-Rochow scale

From Wikinfo

The force of attraction is given by:

force=e2Z/r2

where r is the distance between the electron and the nucleus (covalent radius). e is the charge on an electron. eZ is the charge effective at the electron due to the nucleus and its surrounding electrons.

The quantity Z/r2 correlates well with Pauling electronegativities and the two scales can be made to coincide by expressing the Allred-Rochow electronegativity as:

AR=0.744 + 0.359Z/r2

See also: Mulliken scale - Pauling scale

References

• Adapted from the Wikipedia article, "Allred-Rochow_scale" http://en.wikipedia.org/wiki/Allred-Rochow_scale, used under the GNU Free Documentation License