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How many alpha particles are emitted per minute

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Assuming that each atom that decays emits one alpha particle, how many alpha particles are emitted per minute by a 0.00104-g sample of 247Bk that is free from its decay products? The half-life of 247Bk is 1.40×103 y and the mass of a 247Bk atom is 247.070 u.

Reference no: EM131516121

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