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A detailed line engraving of a three-dimensional geometric model representing a sodium atom. The structure consists of a central, vertically oriented, rounded cylinder or capsule. At both the top and bottom of this central core are six radiating, flattened, petal-like segments arranged in a hexagonal fan-like pattern. Each of these twelve petals contains smaller, nested sub-structures resembling tiny spheres or teardrops, indicating a complex internal composition. The drawing uses hatching and shading to provide a sense of depth and volume.