Assertion: thorium | /r/CapableOf | decompose to golden-yellow thn
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text: Th 3 N 4 and Th 2 N 3 decompose to the golden-yellow ThN, and indeed ThN can often be seen covering the surface of Th 3 N 4 samples because Th 3 N 4 is hygroscopic and water vapour in the air can decompose it: thin films of ThN are metallic in character and, like all other actinide mononitrides, has the sodium chloride structure.