Atomic Radius Display
This view allows you to view the relative atomic sizes of two elements.
This display should not be taken too literally as atoms don't really look like this. It is purely to give you an example of their relative sizes.
The yellow 'atom' is selected from the top list, the purple 'atom' from the bottom list.
The display at the bottom of this panel lists the elements being shown and their atomic width in picometers (pm). A picometer is one trillionth of a meter!