Half Life Practice Worksheet Key. Half life example problems with answers from half life worksheet answer key source. Fluorine 21 has a half life of approximately 5 seconds.
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2 iodine 131 has a half life of 8 days.
Pdf half life worksheet extra practice if each half life is 5 seconds then in one minute 60 seconds there are 12 half lives. 1 1 212 4096. After 42 days a 2 0 g sample of phosphorus 32 contains only 0 25 g of the isotope. Pdf half life worksheet extra practice if each half life is 5 seconds then in one minute 60 seconds there are 12 half lives.
