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If the half life of a radioactive isotope is 1 day, then how much of the original isotope remains at the end of two days? (a) 50% (b) 100% (c) Zero (d) 25% (e) 12.5%

If the half life of a radioactive isotope is 1 day, then how much of the original isotope remains at the end of two days? (a) 50% (b) 100% (c) Zero (d) 25% (e) 12.5%
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If the half life of a radioactive isotope is 1 day, then how much of the original isotope remains at the end of two days?

(a) 50%
(b) 100%
(c) Zero
(d) 25%
(e) 12.5%

User MrRobboto
by
7.8k points

1 Answer

10 votes
25% because the half life of 100 is 50 and the half life of 50 is 25
User Berker
by
8.5k points
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