Problem P. 4379. (October 2011)
P. 4379. The atomic mass number of Radium is A=226, its halflife is 1622 years. What is the activity of 1 g Radium? (Earlier this was the base of the unit of activity: 1 curie was the activity of 1 g radium.)
(3 pont)
Deadline expired on 10 November 2011.
Sorry, the solution is available only in Hungarian. Google translation
Megoldás. Kb. \(\displaystyle 3{,}6\cdot 10^{10}~\)Bq.
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