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what is the formula and the relation to calclate the electronegativity of an atom or ion based on mulliken if electronegativity on pauling scale is given

what is the formula and the relation to calclate the electronegativity of an atom or ion based on mulliken if electronegativity on pauling scale is given


 

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2 Answers

Godfrey Classic Prince
633 Points
10 years ago

Dear ketan thakkar,

The Electronegativity according to the Mullikan's scale is given by the formula

Electronegativity = (Ionisation Energy + Electron Affinity)/540

if Ionisation Energy & Electron Affinity(Electron Gain Enthalpy) are in KJ/mol

 

Electronegativity = (Ionisation Energy + Electron Affinity)/5.6

if Ionisation Energy & Electron Affinity(Electron Gain Enthalpy) are in Electron Volts(eV)

When we use the Ionisation Energy & Electron affinity measured in Electron Volts(eV) the Mullikan's electronegativity values are found to be 2.8 times higher than the pauling values so in order to get the mullikan's scale from the pauling's scale simply multiply the pauling scale values by 2.8 & remember that the Ionisation Energy & Electron Affinity values must be given in electron volts(eV)

Hope this helped you immensely..!!!

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jawad
11 Points
4 years ago
chi p = 1.35(chi m) ½ -1.37
where chi p is mulliken electronegativity and chi m is pauling related value

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