1419x1600pxatom symbol, monochrome line art, science education icon, black and white artwork, atomic structure diagram, circular orbit illustration, nuclear physics graphic
800x899pxatom science symbol, electron line art, nuclear physics illustration, black monochrome design, atomic structure diagram, scientific icon, educational graphic
800x800pxatomic nucleus illustration, black and white science art, nuclear physics diagram, monochrome atomic symbol, quantum mechanics visuals, elemental structure graphics, scientific line art icons