The correct decreasing order of spin only magnetic moment values (BM) of
, , and ions is:

Question

The correct decreasing order of spin only magnetic moment values (BM) of 
, ,  and  ions is:

Canvas Classes · Accepted Answer

Step 1: Find electronic configurations and unpaired electrons

BM, where  = number of unpaired electrons.

| Ion | Config | Unpaired  |  (BM) |
|---|---|---|---|
|  |  | 0 | 0 |
|  |  | 1 |  |
|  |  | 4 |  |
|  |  | 3 |  |

Step 2: Arrange in decreasing order

(4.89)   (3.87)   (1.73)   (0)

→ Option (c)

Key Points to Remember:
- : , diamagnetic (0 unpaired electrons)
- More unpaired electrons → higher magnetic moment
- :  (4 unpaired); :  (3 unpaired)

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