Chemistry

Chemistry, 23.07.2019 06:50, penny3109

A1.2 kg sample of th-228 has a half-life of 1.9 years. how many grams of th is left after 13.3 years?

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Chemistry, 25.07.2019 16:40, akp24

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The half-life of an element is 100 years. if a 40 gram sample was originally deposited, how much is left after 200 years? question 3 options: 10 grams 20 grams 40 grams 80 grams will give 100

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Chemistry, 20.10.2019 21:20, scottytohotty

The half-life of 232-th is 1.4 x 10^10 years.if there were 25.0 grams of thr sample left after 2.8 x 10^10 years,how many grams were in the orifinal sample

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A1.2 kg sample of th-228 has a half-life of 1.9 years. how many grams of th is left after 13.3 years...

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