cmacioge6786 cmacioge6786

07-09-2022
Chemistry

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10. A) If a radioactive isotope (Arkfeldium) has a half-life of 20 years how much will be left after 80
years? B) If another isotope (Coachagen) has 12.5 grams remaining from a .2 kilogram sample
after 1000 years, how long is its half-life?

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