How many days are required for 200. grams of radon-222 to decay to 50.0 grams?
(1) 1.91 days (3) 7.64 days (2) 3.82 days (4) 11.5 days
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Home » Chemistry » How many days are required for 200. grams of radon-222 to decay to 50.0 grams? (1) 1.91 days (3) 7.64 days (2) 3.82 days (4) 11.5 days