If the radius of A nucleus with mass number 7 is 2 Fermi find the radius of the nucleus with mass number 189?
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Average radius if nucleus is given by:
R = R0A1/3 A:mass number R0 = 1.1x10-15m =1.1 fermi
so, R1/R2 = (A1/A2)1/3
given R1 = unknown , R2 = 3 fm , A1 = 128 , A2 = 16
So, R1 = 2*(128/16)1/3
R1 = 6 fermi
R = R0A1/3 A:mass number R0 = 1.1x10-15m =1.1 fermi
so, R1/R2 = (A1/A2)1/3
given R1 = unknown , R2 = 3 fm , A1 = 128 , A2 = 16
So, R1 = 2*(128/16)1/3
R1 = 6 fermi
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