The ${\rm{I}}{{\rm{P}}_1},{\rm{I}}{{\rm{P}}_2},{\rm{I}}{{\rm{P}}_3},{\rm{I}}{{\rm{P}}_4},{\rm{ and }} \, {{\rm{IP}}_5}$ of an element are $7.1,{\rm{ }}14.3,{\rm{ }}34.5$, $46.8$,$162.2 \, \, \text{eV}$ respectively. The element is likely to be:

NEET UG CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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Analyzing +4 | -1

The

\mathrm{I}{\mathrm{P}_1},\mathrm{I}{\mathrm{P}_2},\mathrm{I}{\mathrm{P}_3},\mathrm{I}{\mathrm{P}_4},\mathrm{ and } \, {\mathrm{IP}_5}

of an element are

7.1,\mathrm{ }14.3,\mathrm{ }34.5

46.8

162.2 \, \, \text{eV}

respectively. The element is likely to be:

View answer and explanation

Correct option: B

\mathrm{Si}

The element is most likely Silicon (Si) because there is a large jump in ionization energy between IP4 and IP5, indicating 4 valence electrons.