The maximum covalency of nitrogen isA. `6`B. `5`C. `4`D. `3`

1.	The maximum covalency of nitrogen isA. `6`B. `5`C. `4`D. `3`
Answer» Correct Answer - 3 Nitrogen is restricted to a maximum covalency of `4` because being a second period element `(n=2)`, it has only four atomic orbitals (one `2`s three `2`p) which are available for bonding . it does not have vacant `d`orbitals in its valence shell to expand its convalency beyound four. That is why it does not form pentahalides like `P` For the same reason .`N` does not function as a Lewis acid whereas `p` does so: `pF_(5) + :overset(..)underset(..)F: rarr PF_(6)^(-)`

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The maximum covalency of nitrogen isA. `6`B. `5`C. `4`D. `3`

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