Electronegativity depends upon nature of orbital
Electronegativity depends upon nature of orbital involved
in bonding. The s orbital penetrates
nearer to the nucleus than a p orbital, therefor s orbital contributes more electronegative character. So it
depends upon s and p character in sp3, sp2, and sp
hybridization. For a carbon atom in sp hybridization has higher electronegativity
(3.29) than sp2 (2.75) and sp3 (2.48) hybridized orbital.
Conclusion:
“Electronegativity increases as s character in
hybrid orbital increases”
Easy to understand
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