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Periodicity in atomic properties

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Question

Write the approximate EA of atom X in eV/atom unit using the data given below:

I.E.of X = 13.0 eV/atom 
E.N. of X =3.05 (on Pauling scale) 

Moderate
Solution

 Electronegativity (Muliken) of X= I.P. + E. A. 2

I.P. and E.A. in eV/ atom unit

  E.N. of XMuliken =2.8XPaulling 


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