Magnetic NaCl model

Sodium chloride lattice model with magnets and water molecules

The ions are printed as hemispheres with different numbers of round sides, flat sides (to glue together) and sides with indentations for magnets.

Magnets required:
chloride ions and oxygen atom: 8 x 3 mm
sodium ions and hydrogen atoms: 5 x 1 mm

I use the model to make lattice energy and hydration energy more palpable, as well as to show the orientation of the water molecules coordinated to the ions.