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Accessed: 
Structural identifiersNames and synonymsDatabase IDs
(~4~He)Helium
| Molecular formula: | 4He |
| Average mass: | 4.003 |
| Monoisotopic mass: | 4.002603 |
| ChemSpider ID: | 4574020 |
Structural identifiers- Names
Names and synonymsVerified
(~4~He)Helium
[ACD/IUPAC Name]Helium-~4~He
[ACD/Index Name]Unverified
(4)2He
(4)He
helium-4 atom
Database IDs