Explain the following with suitable examples: (i) Ferromagnetism (ii) Paramagnetism (iii) Ferrimagnetism (iv) Antiferromagnetism (v) 12-16 and 13-15 group compounds.
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Ferromagnetism- The substances which get very strongly attracted due to the presence of a magnetic field and is magnetised by strong electrostatic field. Like cobalt, nickel, iron.
Paramagnetism - They are weekly attracted due to the presence of a magnetic field and upon removing it loses its magnetism.Like Cu2+, Fe3+.
Ferrimagnetism - When magnetised the magnetic moments get aligned in parallel and anti-parallel directions like MgFe2O4.
Antiferromagnetism - The moments are oppositely oriented and they cancel the moment like MnO.
12–16 and 13–15 group compounds - They are covalent compounds and the difference in electronegativities decides their ionicity.
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