- #1
fk378
- 367
- 0
Homework Statement
Which one of the following ionic compounds has the largest lattice energy?
NaCl
CaO
Li2O
CaCl2
Homework Equations
Ionic/Atomic size
The smaller the ionic size, the larger the lattice energy.
Size increases from right to left, increases top to bottom of periodic table
The Attempt at a Solution
I've tried to compare the like ionic compounds, such as NaCl with CaCl2 but I can't seem to figure out which is bigger--Na+ or Ca2+
Am I approaching this incorrectly?