Iron-59 is a beta emitter with a half-life of 44.5 days. If a sample initially contains 132
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Iron-59 is a beta emitter with a half-life of 44.5 days. If a sample initially contains 132 mg of iron-59, how much iron-59 is left in the sample after 265 days?
a) 0.00 mg
b) 2.13 mg
c) 33.2 mg
d) 66.0 mg
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