Assertion: osmium's isotope | /r/HasProperty | discovered
Facets:
value: between 1934
type: TEMPORAL
value: with being 200–202ir
type: OTHER
value: between 2008
type: TEMPORAL
Source sentences:
text: All known isotopes of iridium were discovered between 1934 and 2008, with the most recent discoveries being 200–202Ir.
text: Additionally, 34 radioactive isotopes have been discovered.