Chemistry, 24.09.2021 14:00, SchoolSucks234

Pisa radionetive isotope with a half life of 14.3 days. If you currently have 91.3 of p, how much was present 8.00 days ago

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Pisa radionetive isotope with a half life of 14.3 days. If you currently have 91.3 of p, how much wa...