Chemistry

Ben Nunez

6 August, 17:00

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 th

half-life of fermium-253?

3.0 days

4.5 days

17.5 days

20.0 days

+4

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