Assertion: antimony | /r/AtLocation | valence states of 3 and 5
Facets:
Source sentences:
text: Antimony (CAS No. 7440-36-0) is a naturally occurring metalloid element (displaying both metallic and nonmetallic properties) existing in valence states of 3 and 5 (Budavari, 1989; ATSDR, 1990).