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Mathematics, 27.05.2020 05:01 jackphilander2285

Radioactive isotope #1
has been kept for 12.5 years. Originally, there were 20 grams and now there are 19.808 grams.
What is the half-life?
When will there be 1 gram left?
Round rate to 8 decimals.

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Radioactive isotope #1
has been kept for 12.5 years. Originally, there were 20 grams and now t...
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