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in The p Block Elements by (33.4k points)
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Why does the reactivity of nitrogen differ from phosphorus?

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1. Nitrogen has a small size, high electronegativity, high ionisation enthalpy as compared to phosphorus.

2. Nitrogen does not contain vacant d-orbitals in its valence shell whereas phosphorus contains vacant d-orbitals in its valence shell.

3. Nitrogen has the ability to form triple bond ( N ≡ N) as a result of which its bond enthalpy (941.4 kJ mol-1) is very high making it less reactive.

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