Among the elements B, Al, C, and Si, which element has the highest first ionisation enthalpy? Justify your answer.

Question

Among the elements B, Al, C, and Si, which element has the highest first ionisation enthalpy? Justify your answer., B; because it has a smaller atomic size and stronger electron-electron repulsions., Al; because it has a completely filled inner electron shell, reducing its affinity for additional electrons., C; because it has a higher nuclear charge, resulting in a stronger attraction for electrons., Si; because it has a larger atomic size and tends to lose electrons easily.

MARKS App · Accepted Answer

Correct Option is : (C) C; because it has a higher nuclear charge, resulting in a stronger attraction for electrons.

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