| Label | Id | |
|---|---|---|
| fenchone | http://purl.obolibrary.org/obo/CHEBI_4999 | |
| neon(0) | http://purl.obolibrary.org/obo/CHEBI_49993 | |
| radon(.1+) | http://purl.obolibrary.org/obo/CHEBI_49998 | |
| radon(0) | http://purl.obolibrary.org/obo/CHEBI_49997 | |
| monoatomic argon | http://purl.obolibrary.org/obo/CHEBI_49990 | |
| elemental argon | http://purl.obolibrary.org/obo/CHEBI_49991 | |
| argon cation | http://purl.obolibrary.org/obo/CHEBI_49992 | |
| monoatomic neon | http://purl.obolibrary.org/obo/CHEBI_49994 | |
| elemental neon | http://purl.obolibrary.org/obo/CHEBI_49995 | |
| neon cation | http://purl.obolibrary.org/obo/CHEBI_49996 | |
| radon cation | http://purl.obolibrary.org/obo/CHEBI_49998 | |
| monoatomic radon | http://purl.obolibrary.org/obo/CHEBI_49999 |