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21.3 Exercise 17

Avg difficulty 2.5

If 1.000 g of 88226Ra _{ 88}^{226} \text{Ra} produces 0.0001 mL of the gas 86222Rn _{ 86}^{222} \text{Rn} at STP (standard temperature and pressure) in 24 h, what is the half-life of 226Ra in years?

OpenStax Chemistry 2e, 21.3 Radioactive Decay, exercise 17

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Adapted from General Chemistry © 2019 Rice University. Licensed under CC BY 4.0. Sources: Chemistry 2e, Chemistry: Atoms First 2e. Imported at revision 32c7196.