Difference between revisions of "Helium (Q2394)"
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(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。) |
(Added [ja] alias: He) |
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Latest revision as of 00:35, 30 July 2022
Helium is the chemical element with the symbol He and atomic number 2. The atomic mass is 4.0026 (amu, g/mol).
- He
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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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