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| 1. |
Although Cr^(3+) and Co^(2+) ions have the same number of unpaired electrons but the magnetic moment of Cr^(3+) is 3.87 BM and that of Co^(2+) is 4.87 BM. Why? |
| Answer» Solution :`Cr^(3+)` ion has symmetrical electronic configuration in the OUTERMOST orbit i.e., `3d^(3)`. In such ions there is no ORBITAL configuration to magnetic moment. However, appreciable orbital contribution takes PLACE in `Co^(2+)` with `3d^(7)` configuration. | |