chemgirl3 chemgirl3

04-11-2018
Chemistry

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Element-106 has a half life of 0.90 seconds. If one million atoms of it were prepared, how many atoms would remain after 4.5 seconds?

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hamiltonaddison hamiltonaddison

15-11-2018

4.5/.90 = 5 half lives

(.5)^5 * 1000000

.03125 * 1000000

3.1 x 10^4

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