1) Group 15 elements have more electrons gain enthalpy than group 16 -elements.The correct reason for this is A) Half-filled stability of gp.15 elements B) poor shielding in gp.15 C) poor shielding in gp.16 D) half-filled stability ogf gp.16 elements Answer: Option AExplanation: 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
