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Home Q & A Board Science-Related Homework Help Physics
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symbo symbo
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7 years ago
What is the half-life of a sample of matter containing a radioactive element?
A)   The time needed for the number of radioactive atoms in the sample to decay to 1/(2.71828) of the number originally present
B)   Half the time needed for the radioactive decay rate to double
C)   The time needed for half of the radioactive atoms in the sample to decay
D)   Half of the time needed for all of the radioactive atoms in the sample to decay
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Discovering the Universe

Discovering the Universe


Edition: 7th
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hyponoticahyponotica
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7 years ago
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symbo Author
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7 years ago
Good timing, thanks!
megan.xo
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Yesterday
This calls for a celebration Person Raising Both Hands in Celebration
ouasfoudgewu
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2 hours ago
Brilliant ツ
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