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Uranium-235 has a half-life of 713 million years, while carbon-14 has a half-life of about 5,730 years. Which isotope would be more useful for dating a fossil from Precambrian t…

Uranium-235 has a half-life of 713 million years, while carbon-14 has a half-life of about 5,730 years. Which isotope would be more useful for dating a fossil from Precambrian t…
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Uranium-235 has a half-life of 713 million years, while carbon-14 has a half-life of about 5,730 years. Which isotope would be more useful for dating a fossil from Precambrian time?

User Danomarr
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2 Answers

6 votes
Uranium - 235. It has a longer half - life, which means that it can be used to trace events/items further back in history than carbon - 14 can.
User Callanbr
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8.1k points
2 votes
Uranium-235 is more useful.
User Brie
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8.0k points
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