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What is the nuclear radius of an atom whose mass number is 125 ?

Answer»

SOLUTION :Nuclear radius, `r = R_(0) A^(1//3) " where " R_(0) = 1.4 xx10^(-15)m`, A = MASS NUMBER
`:. "" r = (1.4 XX 10^(-15)m) xx (125)^(1//3) = 1.4 xx 10^(-15) xx 5m = 7.0 xx 10^(-15)m`


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