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Calculate the electronegativity of silic...

Calculate the electronegativity of silicon ( covalent radius= 1.175 Å)

Text Solution

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Electronic configuration of Si ` = 1s^2 2s^2 2p^6 3s^2 3p^2`
`Z_(eff) = Z_("actual") - sigma = 14 - (0.35 xx 4 + 0.85 xx 8 + 1.0 xx 2) = 3.80`
Therefore `chi_(Si) = 0.359 xx 3.80 // (1.175)^2 + 0.744 = 2.50`
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