02: 59: 56
a 60.0-g sample of fermium-253 was placed in a sealed vessel 9.0 days ago. only 7.5...
Chemistry, 10.12.2019 23:31 teamroper35
02: 59: 56
a 60.0-g sample of fermium-253 was placed in a sealed vessel 9.0 days ago. only 7.5 g of this isotope is now left. what is the
half-life of fermium 253?
3.0 days
4.5 days
17.5 days
20.0 days
Answers: 3
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