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the susceptibility of Ge is -0.8*10^-5 taking the radius of the ion core to be 0.44A...

the susceptibility of Ge is -0.8*10^-5 taking the radius of the ion core to be 0.44A estimate the percentage of contribution of the covalent bond to susceptibility,Ge has density of 5.38 gm/m^3 and an atomic weight of 72.6?

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