Question: When a sample from a meteorite is analyzed, it is determined that 9 5 . 9 % of the original mass of a certain radioactive

When a sample from a meteorite is analyzed, it is determined that 95.9% of the original mass of a certain radioactive isotope is still present. Based on this finding, the age of the meteorite is calculated to be 4.00109yr. What is the half-life (in yr ) of the isotope used to date the meteorite?
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When a sample from a meteorite is analyzed, it is

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