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Chemistry, 08.12.2020 20:20 ava5015

Plutonium-236 is an alpha emitter with a half-life of 2.86 years. If a sample initially contains 2.35mg of Pu-236, what mass of Pu-236 is
present after 10 years?
a. 0.228mg
b. 0.208mg
c.0.198mg
d. 0.188mg

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