What is meant by half life of a radioactive element is 30 seconds calculate the deccay constant?

1 Answer
Dave
Mar 8, 2018

See Below

Explanation:

Radioactive decay follows 1st order kinetics. And the time it takes for a half life to elapse is:
#t_"1/2" = ln2/k#; where k is the rate constant. I think that is what your question is asking for, the value of k.

30s = 0.693/k

#k = 0.693/"30s" = 0.0231s^-1#

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