## Lattice energy

Leslie Contreras 1D
Posts: 35
Joined: Fri Apr 06, 2018 11:02 am

### Lattice energy

There is an example in the book about identifying the greater lattice energy?
it said the ionic radius of NaCl is less but what does that have to do with lattice energy?

Chem_Mod
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Joined: Thu Aug 04, 2011 1:53 pm
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### Re: Lattice energy

Section 3.4 won't be covered as part of this class.

The equation for the interaction of charges (ions or other particles) is $E=\frac{q_{1}q_{2}}{4\pi \epsilon _{0}r}$
Therefore, smaller distance between charges (smaller ionic radii) means more negative energy (since q1 and q2 have opposite signs), or larger lattice energy.