Assertion: neptunium | /r/HasProperty | 3 s
Facets:
Source sentences:
text: A wide variety of neptunium sulfide compounds have been characterized, including the pure sulfide compounds NpS, NpS 3 , Np 2 S 5 , Np 3 S 5 , Np 2 S 3 , and Np 3 S 4 .
text: Np 2 Se 5 , Np 3 Se 4 , and Np 3 Se 5 .