Ryan has 200 grams of flerovium -289 which has a half life of 30 seconds. use the formula = a · b to figure out how much flerovium -289 you will have after 5 minutes

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DeanR

I don't understand the formula referred to but 5 minutes is 10 30 second periods, so ten halvings:

[tex]P = 200 (\frac 1 2)^{10} = \frac{25}{128} \approx 0.195 \textrm{ grams}[/tex]

Answer: About 0.2 grams