Physics, 06.11.2020 01:00 b2cutie456
the isotope radium-226 decays into radon-222, with a half-life of around 1,600 years. if a rock contained 6 grams of radium-226 when it reached its closure temperature but only 0.375 grams when it was discovered , which two statements about the rock are true.
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the isotope radium-226 decays into radon-222, with a half-life of around 1,600 years. if a rock cont...
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