Please, don't use periodic table to visualize anything by elements. For elements it works great and is one of the most beautiful and useful visualization ever created (as it's form is related to fundamental relation between elements).<p>For everything else (unless having a similar structure to elements), it's awful, misleading and pointless. If I see such I am always wondering, is it: a tasteless designer, wannabe data scientist who know no other visualizations, or a science ignorant having no clue why Mendeleev's table is structured in that particular way, or a salesman wanting to give it extra legit and make it sound more fundamental.<p>Just please, don't.<p>Hint: just group things, in their own structure.