1.

Which of the following are radioacitve? a. ._(48)Cd^(114)b. ._(49)In^(114)c. ._(50)Sn^(114)

Answer»


Solution :Odd no of protons or neutrons or both present in nucleus then it will RADIOACTIVE according to EVEN odd THEORY.
so `._(49)^(119)ln` unstable
49 odd No.


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