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COMEDK2014Chemistryp Block Elements (Group 15, 16, 17 & 18)

Nitrogen shows maximum covalency of 4 whereas, other heavier elements of the group show higher covalency because,

Options

  1. Ait has higher electronegativity
  2. Bit has smaller size
  3. Cit has only 4-orbitals available in the valence shell
  4. Dit prefers to form multiple bonds with atoms

Correct answer

C. it has only 4-orbitals available in the valence shell

Step-by-step solution

Covalency of nitrogen is restricted to four due to absence of d -orbitals in its valence shell. Only four orbitals (one 2 s and three 2 p -orbitals) are available in its valence shell.

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