What is the half life of this substance?, 25 days, 50 days, 100 days, 12 days, What is the half life of this substance?, 2 days, 4 days, 8 days, 10 days, Half life?, 2 minutes, 4 minutes, 6 minutes, 10 minutes, Half life?, 2 days, 4 days, 2 minutes, 8 days, Half life?, 1.5 hours, 2 hours, 2.5 hours, 3 hours, What percentage of the substance will be left after 4 minutes?, 50%, 25%, 10%, 75%, What fraction will be left after 24 days, 1/2, 1/4, 1/8, 1/16, What fraction is remaining after 4 minutes, 1/2, 1/4, 1/8, 1/16, After 30 years, what would the count rate be?, 100, 200, 300, 400, Which one has the longer half life?, iodine 131, iodine 135
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Half life graphs
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Elizabeth312
KS4
Physics
Atomic structure
Radioactivity
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