Diamagnetic Lanthanoid ions are:

Question

Canvas Classes · Accepted Answer

Diamagnetic = all electrons paired =  or

| Ion | Z | Config | 4f electrons | Magnetic |
|-----|---|--------|--------------|----------|
|  | 57 | [Xe] |  | Diamagnetic ✓ |
|  | 58 | [Xe] |  | Diamagnetic ✓ |
|  | 60 | [Xe]  |  | Paramagnetic ✗ |
|  | 63 | [Xe]  |  | Paramagnetic ✗ |
|  | 71 | [Xe]  |  | Diamagnetic ✓ |

Option (2): Both  () and  () are diamagnetic. ✓

Answer: Option (2) —  and

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