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Naddika [18.5K]
3 years ago
7

The half-life of chromium-51 is 28 days. If the sample contained 5.10 grams, how much chromium was present 168 days ago?

Mathematics
1 answer:
stepan [7]3 years ago
3 0
I don’t understand how many grams had the first one,so I can’t help you
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