Oxygen-16
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| General | |
|---|---|
| Name, symbol | Oxygen-16,16O |
| Neutrons | 8 |
| Protons | 8 |
| Nuclide data | |
| Natural abundance | 99.76% |
| Half-life | stable |
| Isotope mass | 15.99491461956 u |
| Spin | +5/2 |
| Excess energy | -4.73700141 keV |
| Binding energy | 7.976206 keV |
| -2.760 | |
| 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 15.99491461956 u. Oxygen-16 is the most abundant isotope of oxygen and accounts for 99.762% of oxygen's natural 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.
References[edit]
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