The Periodic table of elements. Handwriting chemical element Ruthenium Ru with black pen, test tube and pipette. Close-up.
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Photo credit: © Ekaterina Minaeva / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: 44, atom, atomic, black, chemical, chemistry, education, electron, element, handwriting, mass, mendeleev, metal, notebook, number, paper, pen, periodic, pipette, ru, ruthenium, science, sign, solid, studying, symbol, table, test, text, tube, weight, white, word, writing