space-filling model

== English == === Alternative forms === spacefilling model === Noun === space-filling model (plural space-filling models) (chemistry) A type of three-dimensional molecular model, where the atoms are represented by spheres whose radii are proportional to the radii of the atoms, and whose center-to-center distances are proportional to the distances between the atomic nuclei, all in the same scale. ==== Synonyms ==== calotte model CPK model