MHT CET 2023 Chemistry question

What is the number of elements present in each series of transition element?

(A)8
(B)10Correct
(C)14
(D)24

Answer: (B)

Solution

The transition (d-block) elements are arranged in four series (3d, 4d, 5d and 6d), in which the (n-1)d orbitals are progressively filled. Since the d subshell can hold 10 electrons (five orbitals), each series has 10

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Question ID VK-097869