Question

The bond dissociation energy of H-H,C-C and C-H bonds are respectively 104.2,83.1 and 98.8 kcal mol^-1.The electronegativity of carbon is

Answer 1

Calculate the electronegativity of fluorine from the following data:

BDE(H−H)BDE(F−F)BDE(H−F)χH=104.2 kcal/mol=36.6 kcal/mol=134.6 kcal/mol=2.1BDE(H−H)=104.2 kcal/molBDE(F−F)=36.6 kcal/molBDE(H−F)=134.6 kcal/molχH=2.1

I thought that electronegativity should be related to effective nuclear charge, as it is a measure of how strongly atoms "pull" on bond pairs.


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