1.

- The stable nucleus that has a radius half that of Fe56 is : (A) Li7(B) Na21(C) S16(D) Ca40​

Answer»

AExplanation:​The nuclear RADIUS ​R = R0 A1/3or R ∝ A1/3or R3 ∝ A ⇒ A ∝ R3∴ A2=  R2 3A1 R1=  R1/2 3 = 1R1  8A2 = A1= 56= 78 8



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