JEE Main Chemistry question

Ionisation potential is lowest for

(A)Alkali metalsCorrect
(B)Inert gas
(C)Halogens
(D)Alkaline earth metals

Answer: (A)

Solution

Alkali metals have a single, loosely held valence electron outside a stable noble-gas core, making them the easiest of all elements to ionise and giving them the lowest ionisation potentials in their respective periods. Inert gases (filled

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Question ID VK-133260