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A cartoon of similarities among atoms across chemical compound space, not in conflict with quantum mechanics. The exemplary molecule aspirin is highlighted by bonds, and each of its atoms is superimposed with a similar atom in another molecule (hydrogens omitted for clarity). Green, yellow, gray, red, and blue refer to sulfur, phosphor, carbon, oxygen, and nitrogen, respectively. Reproduced with permission from ref (15). Copyright 2020 Springer Nature.
