Chemistry, 11.06.2021 19:40, brennarfa

A sample of material originally had 3.0 X 1028 atoms of a pure radioactive isotope when it first formed. If the half- life of the sample is 817 years, and the sample now has 1.875 X 1027 atoms remaining, how long has it been since the sample formed

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What type of radiation is lead emitting in the following equation? alpha particles beta particles gamma rays

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How many grams are in one mole of lead?

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