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What is a half life?
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1 vote
What is a half life?

User Jisson
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6 votes
its the time taken for the radioactivity of a specified isotope to fall to half its original value. hope this helps u
User Insou
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3 votes
Basically how long does it take for half of a the isotope sample to decay.
User Bootsmaat
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8.4k points
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