Chemistry, 18.09.2019 17:30 saltytaetae
Acertain radioactive element has a half-life of one hour. if you start with 1.0 gram of the element at noon, how much of the radioactive element will be left at 2 p. m.? 0.50 grams 0.25 grams 0.125 grams 0.0 grams
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Acertain radioactive element has a half-life of one hour. if you start with 1.0 gram of the element...
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