Carbon-12 is the more abundant carbon of the two stable isotopes, amounting to 98.93% of the element carbon; [1] its abundance is due to the triple-alpha process by. Carbon-12 is the more abundant carbon of the two stable isotopes, amounting to 98.93% of the element carbon; its abundance is due to the triple-alpha process by which. Nucleosynthesis is the process of creating new atomic nuclei from preexisting nucleons (protons and neutrons). The primordial preexisting nucleons were formed from. Nucleosynthesis: The Origin of the Elements. Table of Contents. The reaction of two carbon-12 nuclei in a carbon-burning star can produce elements other than sodium. Nucleosynthesis. Nuclear fusion, where nuclei combine to make a nucleus with a larger number of protons and neutrons. nitrogen-15 + proton: carbon-12: helium nucleus: Nucleosynthesis is the process that creates new atomic nuclei from pre. Carbon is produced by the triple-alpha process in. [12] Explosive nucleosynthesis Nucleosynthesis in the News: May 8, 2012: New insight into atomic nuclei may explain how supernovas formed elements crucial to humankind-- Science Daily. (nucleosynthesis). nor was there any experimental evidence of nucleosynthesis in stars. the 7.6MeV state in carbon-12 is known as the 'Hoyle. Discussion big bang nucleosynthesis. By the first millisecond, the universe had cooled to a few trillion kelvins (10 12 K) and quarks finally had the opportunity to. Big Bang Nucleosynthesis. most helium is produced in the Big Bang but carbon and everything. Note that H 3 decays into He 3 with a 12 year half-life so no.