D-And F-Block Elements Ques 359

Question: The number of unpaired electrons in $ C{{r}^{3+}} $ ion is

[Kurukshetra CET 2002]

Options:

A) 3

B) 5

C) 4

D) 1

Show Answer

Answer:

Correct Answer: A

Solution:

In $ C{{r}^{3+}} $ number of unpaired $ {{e}^{-}}=3 $ .

A electronic configuration of $ C{{r}^{3+}}=1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{3} $ .



NCERT Chapter Video Solution

Dual Pane