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27-10-2017
Chemistry

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after 252 days, a 12.0-g sample of the radioisotope scandium-46 contains only 1.5 g of the isotope. what is the half-life of scandium-46

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ch3ng27 ch3ng27

27-10-2017

12➡6➡3➡1.5
① ② ③
3 half life = 252
half life = 84days

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