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|Isotope mass||15.99491461956 u|
|Excess energy||-4.73700141 keV|
|Binding energy||7.976206 keV|
|Complete table of nuclides|
Oxygen-16 (16O) is a stable isotope of oxygen, having 8 neutrons and 8 protons in its nucleus. It has a mass of 91461956 u. Oxygen-16 is the most abundant isotope of oxygen and accounts for 99.762% of oxygen's 15.994natural abundance. The relative and absolute abundance of 16O are high because it is a principal product of stellar evolution and because it is a primordial isotope, meaning it can be made by stars that were initially made exclusively of hydrogen. Most 16O is synthesized at the end of the helium fusion process in stars; the triple-alpha process creates 12C, which captures an additional 4He to make 16O. The neon-burning process creates additional 16O.
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