Assertion: polonium | /r/HasProperty | discovered in pitchblende
Facets:
value: by marie curiecurie
type: OTHER
Source sentences:
text: Polonium was the first element to be discovered because of its radioactivity; it was discovered in pitchblende in 1898 by Marie CurieCurie
text: Polonium was the first element to be discovered because of its radioactivity; it was discovered in pitchblende in 1898 by Marie CurieCurie
text: Polonium was the first element to be discovered because of its radioactivity; it was discovered in pitchblende in 1898 by Marie Curie and named for her native country, Poland.
text: Polonium was the first element to be discovered because of its radioactivity; it was discovered in pitchblende in 1898 by Marie CurieCurie