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Chemistry, 28.12.2019 02:31 Hannahrose911
The half-life of potassium-40 is 1.3 billion years. if a rock that formed 2.6 billion years ago originally contained 5 grams of potassium-40, about grams of potassium-40 would be left in that rock today
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The half-life of potassium-40 is 1.3 billion years. if a rock that formed 2.6 billion years ago orig...
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