Assertion: astatine's electronegativity | /r/CapableOf | decrease down group
Facets:
Source sentences:
text: This decrease also occurs because electronegativity decreases down a group; therefore, there is less electron "pulling.
text: Electronegativity therefore decreases down the group (At < I < Br < Cl < F).
text: Electronegativity increases across a period, and decreases down a group.