A newly observed isotope of oxygen is defying all our expectations for how it should behave.
Previously, the largest number of neutrons observed was 18, in the oxygen isotope oxygen-26 .
The attempt was successful, but surprising. Both oxygen-27 and oxygen-28 are unstable, lasting for just a moment of time before decaying into oxygen-24 and 3 or 4 loose neutrons, respectively, and this is where things get interesting for oxygen-28." numbers for protons and neutrons respectively, a property that suggests oxygen-28 should be stable.
Most of the oxygen on Earth, including the air we breathe, is a doubly magic form of oxygen, oxygen-16.
France Dernières Nouvelles, France Actualités
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