Chemistry, 12.03.2020 06:45 Rileyb101207
A 2.6 -gram sample of an isotope of strontium-90 was formed in a 1960 explosion of an atomic bomb at Johnson Island in the Pacific Test Site. The half-life of strontium-90 is 28 years. In what year will only 0.1625 grams of this strontium-90 remain?
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