Bismuth-210 is a beta emitter with a half-life of 5.0
Chapter 19, Problem 81E(choose chapter or problem)
Problem 81E
Bismuth-210 is a beta emitter with a half-life of 5.0 days. If a sample contains 1.2 g of Bi-210 ( atomic mass = 209.984105 amu ), how many beta emissions occur in 13.5 days? If a person’s body intercepts 5.5% of those emissions, to what dose of radiation (in Ci) is the person exposed?
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