| 词条 | Oxygen-16 |
| 释义 |
| alternate_names = | symbol = O | mass_number = 16 | mass = 15.99491461956 | num_neutrons = 8 | num_protons = 8 | abundance = 99.76% | halflife = stable | error_halflife = | background = #F99 | text_color = | image = | image_caption = | decay_mode1 = | decay_energy1 = -2.760 | parent = | parent_symbol = | parent_mass = | parent_decay = | parent2 = | parent2_symbol = | parent2_mass = | parent2_decay = | spin = 0 | excess_energy = -4.73700141 | error1 = | binding_energy = 7.976206 | error2 =}} Oxygen-16 (16O) is a stable isotope of oxygen, having 8 neutrons and 8 protons in its nucleus. It has a mass of {{val|15.99491461956|u=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{{isotope-stub}} 1 : Isotopes of oxygen |
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