About
The character 氚 is a modern addition to the Chinese lexicon, created specifically for scientific and chemical use. It combines the semantic radical 气, which marks it as a gaseous element, with the phonetic component 川 (chuān). While 川 primarily supplies the sound, its three strokes also visually allude to the three isotopes of hydrogen. The character was coined to represent tritium, the radioactive hydrogen isotope whose nucleus contains one proton and two neutrons. As a strictly modern invention for chemical nomenclature, it has no ancient etymology, alternative meanings, or colloquial applications; it functions exclusively as an unambiguous technical term in physics and chemistry.
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