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If the half-life of niobium-91 is 680 years, how long will it take for the decay described in the previous question?
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If the half-life of niobium-91 is 680 years, how long will it take for the decay described in the previous question?

User Alex Barrett
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2 Answers

4 votes

Answer:

2,040

Step-by-step explanation:

User Shae
by
8.2k points
2 votes
2040

15.4+2.2/2 until it equals 2.2
( divide by 3)

680(years)*3 devisions = 2040
User PSCampbell
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8.9k points
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