Q23 / 120 · VITEEE 2016 · Chemistry

Group 15 elements have more electron gain enthalpy than group 16-elements. The correct reason for this is

  • Correct answer
    A
    Half-filled stability of gp. 15 elements,
  • B
    Poor shielding in gp. 15
  • C
    Poor shielding in gp. 16
  • D
    Half -filled stability of gp. 16 elements

Solution

The atoms having half-filled and fully filled orbitals are comparatively more stable, hence more energy is required to remove the electron from such atoms. Therefore group 15 have more I.E. than gp. 16 elements.

Hence, the correct answer is option: 'A'.

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