Assertion: technetium | /r/HasProperty | viioxide
Facets:
Source sentences:
text: When heated with oxygen the result is technetium (VII) oxide, (techentium heptoxide, Tc 2 O 7 ).
text: When heated with fluorine the result is a mixture of technetium (VI) fluoride, (technetium hexafluoride, TcF 6 ) and technetium (VII)