Question

A 100 gram sample of a radioactive isotope has a half-life of 6 days.

How many Hall
life cycles occur over 3 weeks?

A. 6 cycles

B. 2.5 cycles

C. 18 cycles

D. 3.5 cycles

Answer 1

Definitions of alpha, beta and gamma radiation, decay equations and half-life definition and calculations. Fission and fusion definitions and an example.