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प्रश्न
The calculated spin only magnetic moment of Cr2+ ion is ______.
पर्याय
3.87 BM
4.90 BM
5.92 BM
2.84 BM
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उत्तर
The calculated spin only magnetic moment of Cr2+ ion is 4.90 BM.
Explanation:
The atomic number of chromium is 24. The electronic configuration of Cr is [Ar] 3d4. So the number of unpaired electrons (n) is 4.
μ = `sqrt(n(n + 2))`BM
= `sqrt(4(4 + 2))`
= `sqrt 24`
= 4.90 BM
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