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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)2p^(2)`
`Z_(eff)= Z_("actual")- sigma= 14-(0.35 xx 4+ 0.85 xx 8+1.0 xx2 )= 3.8`
Therefore, `chi_(Si)= 0.359 xx 3.8//(1.175)^(2)+0.744= 2.5`
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