Mathematics
Mathematics, 12.11.2020 08:20, lolo8787

Please help me! The reactivity of Radon-220 decreases with time.
After 224 seconds, the reactivity is 6.25% of its original value. Calculate the half life of Radon-220.

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Please help me! The reactivity of Radon-220 decreases with time.
After 224 seconds, the reacti...

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