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| 1. |
Explain giving reasons : Transition metals and many of their compounds show paramagnetic behaviour. |
| Answer» Solution :Paramagnetism arises due to the presence of unpaired electrons in atomic and ionic species. Most of the transition metal atoms and their ions contain unpaired electrons in their penultimate (N - 1)d orbitals. Therefore, most of the transition metal ions and their compounds exhibit paramagnetic behaviour. Paramagnetic character increases as the number of unpaired electrons. The 'spin only' magnetic MOMENT is represented by, `mu_(s)=sqrt(n(n+2))BM`, where n = no. of unpaired electrons. | |