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Ontology Browser

Term:
Parent Terms Term With Siblings Child Terms
alpha-particle +    
helium atom +    
helium molecular entity +  
helium-3 atom 
helium-4 atom 
The stable isotope of helium with relative atomic mass 4.002603. The most abundant (99.99 atom percent) isotope of naturally occurring helium.
helium-6 atom 
helium-8 atom 

Synonyms
Related Synonyms: (4)2He ;   (4)He ;   Formula=[4He] ;   InChI=1S/He/i1+0 ;   InChIKey=SWQJXJOGLNCZEY-IGMARMGPSA-N ;   SMILES=[4He] ;   helium-4
Xrefs: Gmelin:14207

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