Physics, 09.12.2020 21:30, tfyvcu5344

Thorium- 229 is the radioactive substance that gives lantern mantels their eerie glow. The half life of thorium-229 is 7340 years. If one mantel consists of 0.25 grams of thorium, how much thorium will remain after 14,680 years?

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Thorium- 229 is the radioactive substance that gives lantern mantels their eerie glow. The half life...