Assertion: beryllium | /r/HasProperty | metallic element
Facets:
Source sentences:
text: Beryllium (Be), a metallic element, belongs to Group IIA of the periodic table and has an atomic weight of 9.012 and an oxidation state of +2 (U.S. EPA, 1987a; Budavari et al., 1989).
text: Beryllium is a metallic chemical element grouped with the alkaline earth elements, which include magnesium, calcium, barium, radium, and strontium.
text: Beryllium is a metallic element that can dissolve into water.