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Redioactivity: Fraction of activity of isotope and half-life

A radioactive isotope has a decay constant lambda = 0.0582 s-1.

a) What is the half-life of the isotope in seconds?

b) What fraction of the activity of a sample of the isotope will remain after 30 seconds?

c) Identify the name of the isotope.

Solution Summary

Half life and fraction of activity after 30 second.