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Why N-N bond length of H2N-NH2 is greater than N-N bond length of F2N-NF2 molecules?

Electronegativity of F is much more than hydrogen and also hybridization of nitrogen atoms in of H2N-NH2 and F2N-NF2 both have (sp3) same . According bent’s rule those hybrid orbitals containing flourine atom have less % s-characterand more p-character while other orbitals have more % s-character and less % s-character hence N-N bond length in F2N-NF2 is shorter than H2N-NH2

Related Questions:

What is Bent’s rule of hybridization?

Which of the following compound have longest (S=O)bond length , O=SF2, O=SCl2, O=SBr2.

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