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Chemistry, 22.06.2019 11:40
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Chemistry, 22.06.2019 23:30
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Chemistry, 23.06.2019 01:00
If a sample of radioactive isotopes takes 600 minutes to decay from 400 grams to 50 grams, what is the half-life of the isotope?
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What does the 3 indicate in 1s22s22p63s1...
Mathematics, 09.06.2020 23:57
Mathematics, 09.06.2020 23:57
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Mathematics, 09.06.2020 23:57
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Mathematics, 09.06.2020 23:57