Assertion: astatine | /r/HasProperty | a member of the halogen family
Facets:
Source sentences:
text: Astatine is a member of the halogen family, elements in Group 17 (VIIA) of the periodic table.
text: When you look at the periodic table, you’ll find that astatine is also a member of the halogen family, belonging to the Group 17 of the periodic table.