helium 3
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Related to helium 3: nuclear fusion, tritium
he·li·um 3
(hē'lē-ŭm),The rare stable isotope of helium (1.37 parts per million of ordinary helium); produced by the beta decay of tritium.
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helium 3
3HeA stable isotope of helium whose nucleus contains two protons and a single neutron. The isotope is polarizable, making it suitable as a gaseous contrast agent for use in magnetic resonance imaging.
See also: helium
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