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Mathematics, 11.11.2021 14:00 cupcake3103670
The half -life of the radioactive element unobtanium-29 is 5 seconds. If 80 grams of unobtanium-29 are initially present, how many grams are present after 5 seconds? 10 seconds? 15 seconds? 20 seconds? 25 seconds?
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The half -life of the radioactive element unobtanium-29 is 5 seconds. If 80 grams of unobtanium-29 a...
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