High school10 min

Ionic bonding and ionic solids

From electron transfer to crystal: write the formula of an ionic solid, understand where its stability comes from and predict its properties.

The essentials

1

An electron transfer

A metal gives its valence electrons to a non-metal. The metal becomes a cation, the non-metal an anion, and the two attract electrostatically: NaNaX++eX\ce{Na -> Na+ + e-} then Cl+eXClX\ce{Cl + e- -> Cl-}.
2

The energy balance

Members only

3

Crystal lattice and lattice energy

Members only

4

The properties that follow

Members only

5

A formula that is always neutral

Members only

ƒWrite my own sheetOr start from a blank page: rewriting a concept in your own words is how it sticks.