Answers Chemistry Credit Recovery B Half-LifeQuestion 9

9

QuizMultiple Choice

Half-Life

Question 9 • Chemistry Credit Recovery B

Niobium-91 has a half-life of 680 years. After 2,040 years, how much niobium-91 will remain from a 300.0-g sample?

Answer

A

3 g

B

18.75 g

C

37.5 g

D

100.0 g

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