Chemistry, 24.05.2021 21:00 maysahdabest
After 20 days, a 120 kg sample of Bi-209 decays down to 15 kg. What is its half-life?
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Why sncl2 is solid while sncl4 is liquid at room temprature explain it in easy way
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After 20 days, a 120 kg sample of Bi-209 decays down to 15 kg. What is its half-life?...
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