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If 250 mg of a radioactive element decays to 180 mg in 24 hours, find the half-life of the element.

User S K
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250mg/2=125m

180mg/24hrs=45mg/6hrs=15mg/2hrs

125/15=8 ⅓

8 ⅓ *2 =25/3 *2=50/3 hrs




User Nkm
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