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2014-07-24T15:28:39+05:30

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Electro negativity  X  =
 
       1/2 [  ionization enthalpy + electron gain enthalpy or affinity ]

X is higher => higher negativity.


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2014-07-24T21:32:52+05:30
Electronegativity is the property of molecule ,in the molecule to pull the electron towards an atom.and electron gain enthalpy is also the one type of electron pulling property . so higher electron gain enthalpy higher electronegativity .so atom B has higher electronegativity.
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