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Ugo [173]
3 years ago
10

Help me with this please

Chemistry
1 answer:
Leya [2.2K]3 years ago
7 0

Answer:

I think it's answer 3 and 2

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If a radioisotope has a half-life of 4 years, how much remains of a starting amount of 40 grams after 16 years have passed?
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What suffix do the halogen group use
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