The five successive ionisation enthalpies of an element are ${\rm{800, 2427, 3658, 25024 \,\,and\,\, 32824\,\, kJ \,mo}}{{\rm{l}}^{ - 1}}.$ The number of valence electrons in the element is

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JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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The five successive ionisation enthalpies of an element are

\mathrm{800, 2427, 3658, 25024 \,\,and\,\, 32824\,\, kJ \,mo}{\mathrm{l}^{ - 1}}.

The number of valence electrons in the element is

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Correct option: A

Option A (3) is correct because there is a significant jump in ionization enthalpy after the third ionization, indicating that the element has 3 valence electrons.

JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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