Question
Explain the magnetic properties of transition (or d-block) elements.
✓
Answer
- Most of the transition metal ions and their compounds are paramagnetic in nature due to the presence of one or more unpaired electrons in their (n – 1)d-orbitals. Hence they are attracted in the magnetic field.
- As the number of unpaired electrons increases from 1 to 5 in J-orbitals, the paramagnetic character and magnetic moment increase.
- The transition elements or their ions having all electrons paired are diamagnetic and they are repelled in the magnetic field.
- Metals like Fe, Co and Ni possess very high paramagnetism and acquire permanent magnetic moment hence they are ferromagnetic.
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