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(B) The ionization potential $(I.P.)$ increases across a period and decreases down a group. Among the given elements,$He$ (Helium) is a noble gas loca

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$He$

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(B) The ionization potential $(I.P.)$ increases across a period and decreases down a group. Among the given elements,$He$ (Helium) is a noble gas located at the top of the periodic table. It has the smallest atomic size and a stable electronic configuration $(1s^2)$,which makes it extremely difficult to remove an electron. Therefore,$He$ has the highest $I.P.$ value among all elements in the periodic table.

Element having highest $I.P.$ value is

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