Mathematics, 01.06.2020 04:57 Pickle062
A scientist left a 32-gram sample of a radioactive substance out and it was exposed to the air. After 30 minutes, only 26 grams remained.
How much was left when the janitor found it 8 hours after the scientist left?
What is the half-life of this substance?
Hey, can anyone help me solve this. I'm not sure i'm answering it correctly. Thank you.
Answers: 1
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A scientist left a 32-gram sample of a radioactive substance out and it was exposed to the air. Afte...
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