Mathematics

Mathematics, 14.07.2019 10:30, minnie7760

An isotope has a half life of 94 years. how much of a 18 gram sample is left after 200 years?

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Chemistry, 24.06.2019 00:50, nickespinosa11

The barium isotope 133ba has a half-life of 10.5 years. a sample begins with 1.1×1010 133ba atoms. how many are left after (a) 6 years, (b) 10 years, and (c) 200 years?

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Chemistry, 17.07.2019 22:30, deelashasharma

The barium isotope 133ba has a half-life of 10.5 years. a sample begins with 1.1×1010 133ba atoms. how many are left after (a) 5 years, (b) 30 years, and (c) 180 years?

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Chemistry, 25.07.2019 17:20, christiantorres57

The barium isotope 133ba has a half-life of 10.5 years. a sample begins with 1.1×1010 133ba atoms. how many are left after (a) 5 years, (b) 30 years, and (c) 190 years?

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