Atomic radius of the alcaline metals

thingiverse

Students can see atomic radius changes in alcaline metals with a simple model made using Tinkercad. The model features scaled spheres representing atoms of these metals. Lithium has an atomic radius of 152 pm and is represented by a sphere printed at 15.2 mm in diameter, as listed in the table on the images. Scaling the spheres this way ensures they are not too large while still easy to recreate in various sizes. The model's spheres were attached to a base for convenience during classroom demonstrations.