Chemistry, 06.09.2019 18:30 CoolRahim9090

2) the isotope90_sr has a half-life of 28.8 years. what is the activity, measured in atoms/second of a 50 mg sample of sr? (10 pts.)

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2) the isotope90_sr has a half-life of 28.8 years. what is the activity, measured in atoms/second of...