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Q.6 Determine the time required for the secular equilibrium of U-238 and Th-234. Th-234tH=27dayU238tH=4.5109y Secular equilibrium: occurs when the parent is very long lived, compared

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Q.6 Determine the time required for the secular equilibrium of U-238 and Th-234. Th-234tH=27dayU238tH=4.5109y Secular equilibrium: occurs when the parent is very long lived, compared to the daughter (P

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