A) 4.90 BM
B) 5.92 BM
C) 2.84 BM
D) 3.87 BM
Correct Answer: A
Solution :
[a] Electronic configuration of \[Cr[Ar]\text{ }3{{d}^{5}}4{{s}^{1}}\] |
Electronic configuration of \[C{{r}^{2+}}[Ar]3{{d}^{4}}\] |
Number of unpaired \[{{e}^{}}=4\] |
Spin only magnetic moment \[=\sqrt{n(n+2)}\] |
n = number of unpaired \[{{e}^{}}\] |
Spin only magnetic moment \[=\sqrt{4(4+2)}\] |
\[=\sqrt{24}\,BM\] |
\[=4.9\,\,BM\] |
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