“Helion (chemistry)”的意思、由来-开放百科全书

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Helion (chemistry)

释义

External links

A helion is a short name for the naked nucleus of helium, a doubly positively charged helium ion. In practice, helion refers specifically to the nucleus of the helium-3 isotope, consisting of two protons and one neutron. The nucleus of the other stable isotope of helium, helium-4 isotope, which consists of two protons and two neutrons, is specifically called an alpha particle.

This particle is emitted in the decay of tritium, an isotope of hydrogen:

link=no|Hydrogen|3}}

→

link=yes|helium|3|charge=1+}}

link=yes|Electron}}

link=yes|Electron Antineutrino}}

According to CODATA, the mass of a helion particle is 5.006 412 700(62) × 10⁻²⁷ kg.

Helions are intermediate products in the proton-proton chain reaction in stellar fusion.

External links

Helion mass - 2014 CODATA

1 : Nuclear chemistry

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