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Ionisation enthalpy of group 15 elements...

Ionisation enthalpy of group 15 elements is greater than that of group 14 elements due to:

A

the presence of completely filled p orbitals.

B

the presence of half-filled p orbitals.

C

the presence of half-filled d orbitals.

D

the presence of empty p orbitals.

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The correct Answer is:
B
lonisation enthalpy of group 15 elements is greater than that of group 14 elements due to the presence of extra stable half-filled p orbitals.
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Elements of group 14

Elements of group 14

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