Strontium-90 decays to Y-90 by beta decay with a half-life of 28 yrs. Y-90 decays by...

Strontium-90 decays to Y-90 by beta decay with a half-life of 28 yrs. Y-90 decays by beta decay-to Zircomium-90 with a half-life of 64 hrs. What is the composition of the original Strontium -90 sample after (a) 1 hr, (b) 10 yrs?

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genius_generous answered 1 year ago

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