WAEC Chemistry
The property of elements which increases down a group of the periodic table is
a.
Electronegativity
b.
Electron affinity
c.
Ionic radius
d.
Ionization energy
Correct answer: C
The ionic radius of elements increases down a group in the periodic table. Ionization energy, electronegativity and electron affinity, on the other hand, all decrease down a group in the periodic table.