JEE Main Chemistry question

The tenth elements in the Periodic Table resembles with the

(A)First period
(B)Second periodCorrect
(C)Fourth period
(D)Ninth period

Answer: (B)

Solution

A period consists of elements sharing the same outermost principal quantum number ; for , the four orbitals (one , three ) hold up to 8 electrons, so period 2 runs

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Question ID VK-133226