Uranium-238 forms Thorium-234 after radioactive decay and has a half-life of 4.5 × 10^9 years. How many years will it take to decay 75% of the initial amount?
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Answer:
Uranium-238 forms Thorium-234 after radioactive decay and has a half-life of 4.5 × 10^9 years. How many years will it take to decay 75% of the initial amount 9 × 10^9 years.
