Assertion: technetium's discovery | /r/HasProperty | confirmed in a 1937 experiment
Facets:
value: by emilio segrè
type: OTHER
value: by carlo perrier
type: OTHER
Source sentences:
text: The discovery of element 43 was finally confirmed in a 1937 experiment at the University of Palermo in Sicily by Carlo Perrier and Emilio Segrè.