Physics, 28.08.2021 03:50 stormserena

Because of its chemical similarity to calcium, 90/38 Sr can collect in the bones and present a health risk. Part A
What percentage of 90/38 Sr present initially still exists after a period of 46.0y ?
Part B
What percentage of 90/38 Sr present initially still exists after a period of 59.0y ?
Part C
What percentage of 90/38 Sr present initially still exists after a period of 70.0y ?

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Because of its chemical similarity to calcium, 90/38 Sr can collect in the bones and present a healt...