Which statement BEST explains how the attraction experienced by the outermost…
CHEMISTRY · Single correct · AP · Chemistry · Atomic Structure and Properties · Atomic Structure and Properties
Problem
Which statement BEST explains how the attraction experienced by the outermost electron in F⁻ compares with that in neutral F?
(a) The attraction is identical in both species because the nuclear charge is the same and the added electron does not affect shielding.
(b) The attraction is stronger in F⁻ because the ionic radius is smaller, bringing the outer electron closer to the nucleus.
(c) The attraction is weaker in F− because the additional electron increases electron–electron repulsion, reducing the effective pull of the nucleus.
(d) The attraction is stronger in F⁻ because the added electron reduces shielding between the outer electron and the nucleus.