The Elements According to Relative Abundance
Roughly, the size of an element’s own niche is proportioned to its abundance on Earth’s surface, and in addition, certain chemical similarities.
This chart was published in 1976 so it’s obviously outdated and some of the proportions are way off. For example, Astatine (At) looks rather large despite the fact that is one of the rarest elements on Earth, with a total existing amount of less than one gram at any given time. Francium (Fr) is also extremely rare - there is at most one ounce in the Earth’s crust at any time - and yet it looks larger than Neodymium (Nd) which, although it belongs to the rare-earth metals, is not rare at all. Its abundance in the Earth’s crust is about 38 mg/kg, which is the second highest among rare-earth elements, following cerium.
But the idea is really cool!