JEE Main Chemistry question

The first ionisation potential (eV) of Be and B respectively are

(A)8.29 eV, 8.29 eV
(B)8.29 eV, 9.32 eV
(C)9.32 eV, 9.32 eV
(D)9.32 eV, 8.29 eVCorrect

Answer: (D)

Solution

Be's completely filled subshell gives it extra stability and a higher first ionisation potential (≈9.32 eV) than boron's, whose single, more easily removed electron gives it a

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Question ID VK-133259