covalent radius of an element having 82 electrons in extra nuclear part and 82 protons in the nucleus is 146 angstrom.calculate the electro negativity at allred rochow scale of that element.

Asked by nishac | 22nd Sep, 2010, 09:40: PM

Expert Answer:

The quantity Zeff/r2 correlates well with Pauling electronegativities and the two scales can be made to coincide by expressing the Allred-Rochow electronegativity as:
ΧAR = 0.744 + 0.359 Zeff/r2
=.744+.359*82/(146*10-10 )
=.945

Answered by  | 22nd Sep, 2010, 09:53: PM

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