MCQ
The electronic configuration with the highest ionization enthalpy is
  • A
    $[Ne]\, 3s^2\,3p^1$
  • B
    $[Ne]\, 3s^2\,3p^2$
  • $[Ne]\, 3s^2\,3p^3$
  • D
    $[Ar]\, 3d^{10}\,4s^2\,4p^3$

Answer

Correct option: C.
$[Ne]\, 3s^2\,3p^3$
c
The smaller the atomic size, larger is the value of $IP$. Further the atoms having half filled or fully filled orbitals are comparatively more stable, hence more energy required to remove the electron from such atoms.

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