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I am just learning the recipe so it takes me more time to look back and forth and double check.

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Where t is the age of the fossil (or the date of death) and ln() is the natural logarithm function.Since the half-life of Plutonium 239 is so high (even in comparison to the carbon 14 half-life of 5,730 years) humans must be very cautious of the way they dispose of plutonium.Scientists are looking for safe ways for disposing plutonium.Plutonium Plutonium 239 is a man-made radioactive isotope. Plutonium 239 has a half-life of 24,110 years, which means that it would take 240,000 years to decay to a safe amount.Plutonium 239 decays exponentially into lead, but it causes concerns for humans because the tiny particles of plutonium react with oxygen and water and can be extremely flammable.

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