measurement of paramagnetism

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Measurement of paramagnetism

 Paramagnetism can be measured by the Guoy balance . The sample is taken in a tube suspended from the balance , and the weight of the sample is taken in the presence of the magmatic field and also in it's absence 

     If the substance is paramagnetic , it's weight will be more in the presence of the magmatic field being attracted by the magmatic field . The increase in the weight is a measurement of number of unpaired electron I'm the substance.
    Magnetic properties of the co - compounds
can be explained on the basic of  The Valence Bond Theory and The Crystal field Theory.

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