pBlock ElementsII - Result Question 82

####77. Give reason(s), why elemental nitrogen exists as a diatomic molecule whereas elemental phosphorus is a tetra atomic molecule?

(2000, 2M)

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Solution:

  1. Nitrogen in N2 are bonded by one sigma and two pi bonds. Phosphorus and other elements of this period, due to larger size, are very less likely to form pi bonds, hence P4 is formed in which there is no pi bonds.


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