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Answers by Matto

Answers by Matto
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What percent of a sample of As-81 remains un-decayed after 43.2 seconds
answered Jun 12, 2017
4 votes
154k views
Which statement best describes gamma radiation? (1) It has a mass of 1 and a charge of 1. (2) It has a mass of 0 and a charge of –1. (3) It has a mass of 0 and a charge of 0. (4) It has a mass of 4 and
answered Mar 3, 2017
5 votes
29.7k views
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