JEE Main Chemistry question

Which of the following species has four lone pairs of electrons in its outer shell?

(A)I
(B)
(C)Correct
(D)He

Answer: (C)

Solution

has the configuration , so its outer shell () contains 8 electrons, forming exactly 4 complete lone pairs. The neutral iodine atom has 7 outer electrons (3 lone pairs plus 1

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Question ID VK-133527