JEE Main Chemistry question

Statement 1: Known elements may contain as many as 32 electrons in an energy level but only s and p sublevel electrons are considered for the octet rule. Statement 2: For any atom, electrons present in s- and p- subshells assume greater stability.

(A)Assertion is True, Reason is True; Reason is correct explanation for Assertion
(B)Assertion is True, Reason is True; Reason is not correct explanation for AssertionCorrect
(C)Assertion is True, Reason is False
(D)Assertion is False, Reason is True

Answer: (B)

Solution

A principal shell with can indeed hold up to 32 electrons (), yet the octet rule (eight electrons) concerns only the and electrons of the outermost occupied shell, since and electrons of that same principal number are never part of the true valence shell of a main-group atom — the Assertion

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Question ID VK-133223