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Physics, 27.06.2019 11:30 Sadiecoyle37
Atoms of element a decay to atoms of element b with a half-life of 20,000 years. if there are 10,000 atoms of a to begin with (and 0 atoms of b), how long will it take for there to be 2,500 atoms of a? a) 20,000 years b) 40,000 years c) 60,000 years d) 100,000 years
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Atoms of element a decay to atoms of element b with a half-life of 20,000 years. if there are 10,000...
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