Alpha particles produced by radioactive decay eventually pick up electrons from their surroundings to form helium atoms. Calculate the volume (in ml.) of He collected at STP when 1.20 g of pure 226Ra is stored in a closed container for 162. years. (Assume that there are five alpha particles generated per 256 Raas it decays to 206 Pb. The half-life is approximately 1.60 x 10 years.) Round your answer to 2 significant digits. Note: Reference the Fundamental constants table for additional information.

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Alpha particles produced by radioactive decay eventually pick up electrons from their surroundings to form helium atoms. Calculate the volume (in ml.) of He
collected at STP when 1.20 g of pure 220Ra is stored in a closed container for 162. years. (Assume that there are five alpha particles generated per 226,
it decays to 200 pb. The half-life is approximately 1.60 x 10 years.) Round your answer to 2 significant digits.
Ra as
Note: Reference the Fundamental constants table for additional information.
1 ml.
Transcribed Image Text:Alpha particles produced by radioactive decay eventually pick up electrons from their surroundings to form helium atoms. Calculate the volume (in ml.) of He collected at STP when 1.20 g of pure 220Ra is stored in a closed container for 162. years. (Assume that there are five alpha particles generated per 226, it decays to 200 pb. The half-life is approximately 1.60 x 10 years.) Round your answer to 2 significant digits. Ra as Note: Reference the Fundamental constants table for additional information. 1 ml.
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