Isotopes of oxygen
Type of isotope that has 8 protons / From Wikipedia, the free encyclopedia
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There are three known stable isotopes of oxygen (8O): 16
O
, 17
O
, and 18
O
.
Quick Facts Main isotopes, Decay ...
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Standard atomic weight Ar°(O) | |||||||||||||||||||||||||||||||
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Radioactive isotopes ranging from 11
O
to 28
O
have also been characterized, all short-lived. The longest-lived radioisotope is 15
O
with a half-life of 122.266(43) s, while the shortest-lived isotope is the unbound 11
O
with a half-life of 198(12) yoctoseconds, though half-lives have not been measured for the unbound heavy isotopes 27
O
and 28
O
.[3]