Group 16 elements have a lower value of first ionization enthalpy as compared to group 15 elements because:
A
half filled p-orbitals in group 15 elements are more stable
B
group 16 elements have smaller size than group 15 elements
C
group 16 elements contain double bond while group 15 elements have a triple bond
D
group 16 elements have more number of electrons in p-orbitals
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Solution
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Group 16 elements have a lower value of first ionization enthalpy as compared to group 15 elements. As group 15 elements have half filled p-orbital due to which group 15 have got extra stability.
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