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Polonium-218 is an alpha emitter with a half-life of 3.0 minutes. 1)If a sample contains 57...

Polonium-218 is an alpha emitter with a half-life of 3.0 minutes.

1)If a sample contains 57 mg of Po-218 (atomic mass = 218.008965 amu), how many alpha emissions would occur in 25.0 minutes?

2)If the polonium were ingested by a person, to what dose of radiation (in Ci) would the person be exposed?

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