Chemical Galaxy
From Pharmpedia
The Chemical Galaxy is a new periodic table designed by Philip Stewart in November 2004 based on the cyclical nature of characteristics of the chemical elements (which depend principally on the valence electrons). In 1951, Edgar Longman showed that arranging the elements in an elliptical spiral helped reveal patterns in their properties. This gave the then-12-year-old Stewart the idea that it resembled a spiral galaxy. It is designed as an inspiring supplement to existing periodic tables.
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