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Chemistry, 21.12.2020 17:40 surpremeblizzle
One-eighth of a sample of 227 Th 90 (227 90 Th) remains undecayed after 54 days. What is the half-life of the thorium isotope?
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One-eighth of a sample of 227 Th 90 (227 90 Th) remains undecayed after 54 days. What is the half-li...
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