Assertion: protactinium's compound | /r/HasProperty | na
Facets:
Source sentences:
text: Some compounds that have been characterized include Na 2 Np 2 O 7 , Na 4 NpO 5 , Na 6 NpO 6 , and Na 2 NpO 4 .
text: Some compounds that have been characterized include Na 2 Np 2 O 7 , Na 4 NpO 5 , Na 6 NpO 6 , and Na 2 NpO 4 .