Question: 6. A sample of ionium (Th230) weighing 0.100 mg was found to undergo 4.32 X 106 disintegrations/min. What is the half-life of this nuclide?

6. A sample of ionium (Th230) weighing 0.100 mg was found to

6. A sample of ionium (Th230) weighing 0.100 mg was found to undergo 4.32 X 106 disintegrations/min. What is the half-life of this nuclide? Ionium is formed by the a-decay of U234, How many rutherfords of U234 would be needed to produce a 0.100-mg sample of Th230?

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