I need help answering this question:
Cesium 139 is a radioactive isotope. 10.0 ug of pure Cs-139 (isotopic mass = 138.913364u) has an activity of 1460.2 Curies. What is the half-life of Cs-137 in minutes?
The moment you’ve entered the education system is the moment you start to realize that, although studying is extremely important,…
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