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Reactions involving 12C: Nucleosynthesis and Stellar Evolution | ECT*
Nguyen Ann N. Scott Messenger Scott Messenger. Robert M. Reviews in Mineralogy and Geochemistry 68 1 : Article history first online:.
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- Reactions involving 12C: Nucleosynthesis and Stellar Evolution?
Abstract Of the elements strictly synthesized in stars, oxygen is by far the most abundantly produced. You do not currently have access to this article.
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Article activity alert. View Full GeoRef Record. Citing articles via Web of Science Before one neutron half-life passed nearly every neutron had paired up with a proton, and nearly every one of these pairs had paired up to form helium.
Main Sequence Stars
Big Bang nucleosynthesis produced no elements heavier than lithium. To do that you need stars, which means waiting around for at least billion years. More than ninety per cent of the universe is composed of hydrogen and helium. Both elements have been around since shortly after the beginning of the universe.
Yet, hydrogen and helium together won't make anything as complex and as interesting as the Earth, or a bacterium, or a refrigerator, or you and I. To do that we need carbon and oxygen and nitrogen and silicon and chlorine and every other naturally occurring element. Almost all the hydrogen and helium present in the universe today and some of the lithium were created in the first three minutes after the big bang. All of the other naturally occurring elements were created in stars.