Assertion: thorium | /r/HasProperty | silvery white metal
Facets:
value: in pure form
type: OTHER
value: with radioactive properties
type: OTHER
Source sentences:
text: When pure, thorium is a silvery white metal that retains its lustre for several months.
text: Thorium is a silvery metal with radioactive properties that was discovered in 1828 by Jöns Jakob Berzelius (a Swedish chemist) and was named after Thor (the famous Norse god of thunder).
text: Thorium is silvery and tarnishes black when it is exposed to air, forming thorium dioxide; it is moderately hard, malleable, and has a high melting point.
text: Thorium is a silvery-white metal, which tarnishes when exposed to the air.
text: When pure, thorium is a silvery white metal which is air-stable and retains its lustre for several months.
text: Thorium is a silvery white metal that retains its lustre for several months.
text: When pure, thorium is a silvery white metal that retains its lustre for several months.
text: In pure form Thorium is a silvery metal and it is chemically reactive and light toxic.