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Home > Science > Chemistry   »   Half-life of atoms.

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Old May 6, 2008, 03:56 PM
fallensv420
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Half-life of atoms.
If i have an atom with a half life of say 30 seconds and i start out with 5 x10^22 atoms of a type of atom how do i figure out how many atoms remain of like 4 minutes?

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Old May 6, 2008, 04:04 PM   #2  
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Well, every 30 seconds, you have half of them left, so in 8x30 seconds, you have of them left
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