Unreasonable Results The relatively scarce naturally occurring calcium isotope 48 Ca has
Chapter 31, Problem 80(choose chapter or problem)
Unreasonable Results The relatively scarce naturally occurring calcium isotope 48 Ca has a half-life of about 21016 y . (a) A small sample of this isotope is labeled as having an activity of 1.0 Ci. What is the mass of the 48 Ca in the sample? (b) What is unreasonable about this result? (c) What assumption is responsible?
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