Term Name:	argon-39 atom
Synonyms:	(39)18Ar, (39)Ar, (39)Ar radioisotope, Ar-39, Ar-39 radioisotope, argon 39, argon, isotope of mass 39, argon-39
Definition:	A trace radioisotope of argon with atomic mass of 38.964313 and a half-life of 269 years.
Ontology:	ChEBI [CHEBI:155827]  ( EBI )