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The half life of radium is 1620 yr and its atomic weight is 226 g...

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The half life of radium is 1620 yr and its atomic weight is 226 g mol The number of atoms that will decay from its 1 g sample per second will be Avogadro s number N 6 023 x 1023 atom per mole b 3 61 x 10 2 Bq d 31 1 x 10 5 Bq a 3 61 x 10 0 Bq c 3 11 x 10 5 Bq

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