SATHEE: D-And F-Block Elements Ques 416

D-And F-Block Elements Ques 416

Question: The electronic configuration of chromium is

[BHU 2005; Pb. CET 2000]

Options:

A) $[N e] 3 s^{2} 3 p^{6} 3 d^{4}, 4 s^{2}$

B) $[N e] 3 s^{2} 3 p^{6} 3 d^{5}, 4 s^{1}$

C) $[N e] 3 s^{2} 3 p^{6} 3 d^{6}, 4 s^{1}$

D) $[N e] 3 s^{2} 3 p^{5} 3 d^{5}, 4 s^{2}$

Show Answer

Answer:

Correct Answer: B

Solution:

$C r (Z = 24)$ has electronic configuration $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{5} 4 s^{1}$ ( $∵$ half filled d orbital is more stable than incompletely filled d orbital)

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D-And F-Block Elements Ques 416

Question: The electronic configuration of chromium is

Options:

Answer:

Solution:

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