Assertion: thorium | /r/HasProperty | analogous
Facets:
value: to hafnium
type: LOCATION
value: to tungsten
type: LOCATION
Source sentences:
text: Up to the late 19th century, chemists unanimously agreed that thorium and uranium were analogous to hafnium and tungsten; the existence of the lanthanides in the sixth row was considered to be a one-off fluke.