Potassium-40, with a half-life of 1.25 billion years, has been used by geochronologists trying to sort outthe mass extinction of 250 million years ago. What percent ofthe potassium-40 remains from a creature that died 250 millionyears ago?
Potassium-40, with a half-life of 1.25 billion years, has been used by geochronologists trying to sort outthe mass extinction of 250 million years ago. What percent ofthe potassium-40 remains from a creature that died 250 millionyears ago?
Chapter5: Exponential And Logarithmic Functions
Section: Chapter Questions
Problem 28T: The half-life of radioactive actinium ( 227AC ) is 21.77 years. What percent of a present amount of...
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Potassium-40, with a half-life of 1.25 billion years, has been used by geochronologists trying to sort out
the mass extinction of 250 million years ago. What percent of
the potassium-40 remains from a creature that died 250 million
years ago?
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