Oxygen-16
Template:Short description Template:Refimprove
Script error: No such module "Infobox".Script error: No such module "Check for unknown parameters". Oxygen-16 (symbol: 16O or Script error: No such module "Su".O) is a nuclide. It is a stable isotope of oxygen, with 8 neutrons and 8 protons in its nucleus, and when not ionized, 8 electrons orbiting the nucleus. The atomic mass of oxygen-16 is Script error: No such module "val".. It is the most abundant isotope of oxygen and accounts for 99.757% of oxygen's natural abundance.[1]
The relative and absolute abundances of oxygen-16 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 oxygen-16 is synthesized at the end of the helium fusion process in stars; the triple-alpha process creates carbon-12, which captures an additional helium-4 to make oxygen-16. It is also created by the neon-burning process.
Oxygen-16 is doubly magic.
Solid samples (organic and inorganic) for oxygen-16 studies are usually stored in silver cups and measured with pyrolysis and mass spectrometry.[2] Researchers need to avoid improper or prolonged storage of the samples for accurate measurements.[2]
Historically, one atomic mass unit was defined as one sixteenth of the mass of an oxygen-16 atom, but has been redefined as one twelfth of the mass of a carbon-12 atom, with the name unified atomic mass unit or dalton.
References
<templatestyles src="Reflist/styles.css" />
Script error: No such module "Check for unknown parameters".