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Delta(i)H(1)andDelta(eg)H(1) of an eleme...

`Delta_(i)H_(1)andDelta_(eg)H_(1)` of an element are 1680 and `-329 kJ mol^(-1)` respectively. Its electronegativity in Mullicken scale is

A

10.4

B

3.7

C

8.5

D

6.4

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