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Title: How long would it take 4.00 × 1020 atoms to decay to 1.00 × 1019 atoms if their half-life was 14.7 ... Post by: Chery on Dec 6, 2016 How long would it take 4.00 × 1020 atoms to decay to 1.00 × 1019 atoms if their half-life was 14.7 years?
A) 29.4 years B) 58.8 years C) 78.2 years D) 147 years Title: Re: How long would it take 4.00 × 1020 atoms to decay to 1.00 × 1019 atoms if their half-life was ... Post by: lyall on Dec 6, 2016 Content hidden
Title: Re: How long would it take 4.00 × 1020 atoms to decay to 1.00 × 1019 atoms if their half-life was 14.7 ... Post by: Chery on Jan 13, 2017 Looked all over the internet for this, thank you for answering correctly
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