background the elements periodic table carbon hydrogen oxygen and nitrogen science technology engineering |
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navigate by keyword : actinides alkali atom atomic background carbon chart chemical chemistry color earth education element elements engineering gas graphic group halogen hydrogen illustration information inorganic laboratory lanthanide malleable material mendeleev metal metalloid nitrogen noble nonmetal number oxygen period periodic physics school science scientific substance symbol table technology transition vector |
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3d background of the elements of the periodic table, carbon, hydrogen, oxygen and nitrogen, science, technology and engineering background vector |
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