Helium (Q2394)
Revision as of 00:26, 30 July 2022 by Fb920a87-dc49-4d74-98e9-1b3923e3a0dd (talk | contribs) (Removed [ja] alias: ヘリウムは、元素記号He、原子番号2の化学元素である。原子質量は4.0026 (amu, g/mol)である。)
Helium is the chemical element with the symbol He and atomic number 2. The atomic mass is 4.0026 (amu, g/mol).
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Helium
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Helium is the chemical element with the symbol He and atomic number 2. The atomic mass is 4.0026 (amu, g/mol).
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