Assuming the radius of nucleus to be equal to R=1.3A1/3×10−15m, where A is its mass number, evaluate the density of nuclei and the number of nucleons per unit volume of the nucleus. Take mass of one nucleon=1.67×10−27kg .
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For a nucleus having mass number A that is total nucleons A
the radius is R=1.3A1/3×10−15m
So volume will be V=4π3(1.3)3A×10−45m3=9.2A×10−45m3