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The ionization enthalpy of atom A & B are 400 and 300 K cal/mol the electron gain enthalpy of these atoms are 80 and 85 K cal/mol then which atom has

higher electronegativity.
plz its really important plz help me



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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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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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