A Actinium atom diagram
A Actinium atom diagram illustration
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Photo credit: © Matthew Cole / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: actinium, art, atom, atomic, atoms, aufbau, background, chemsitry, clip, clip-art, clipart, configuration, diagram, drawing, electron, electrons, energy, graphic, illustration, image, learning, levels, mass, neutrons, outer, period, periods, physics, picture, protons, shell, table