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How much of a radioactive kind of lanthanum will be left after 120 hours if you start with 160 grams and the half-life is 40 hours?
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3 votes
How much of a radioactive kind of lanthanum will be left after 120 hours if you start with 160

grams and the half-life is 40 hours?

User Anessa
by
7.3k points

1 Answer

2 votes

Answer:

20 grams should be correct

Explanation:

User Benjamin Fourgeaud
by
7.3k points
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