What is the half-time of radiocarbon? (carbon-14)
5 years
57 years
573 years
5730 years
Carbon-14, 14C, or radiocarbon, is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons. Carbon-12 and carbon-13 are both stable, while the half-life of carbon-14 is 5,730 ±40 years.
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Answers by country
5 years
57 years
573 years
5730 years
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22
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27
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48
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25
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34
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24
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9141
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103
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102
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691
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216
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21
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409
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51
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765
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25
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90
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70
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34
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101