Ķīmiskie elementi
Helium (?)
Atomskaitlis: 2 · Ķīmiskais simbols: ?
- Atomskaitlis
- 2
- Ķīmiskais simbols
- ?
- Standarta atommasa
- 4.002602(2)
Initial controlled data layer: the IUPAC English element name is retained until native nomenclature is individually verified.