elements hydrogen oxygen carbon and nitrogen atom properties the chemical |
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navigate by keyword : text screenshot presentation organ multimedia logo line label font eye document diagram design circle cartoon brand banner advertising hydrogen oxygen carbon nitrogen periodic table chemistry chemical element elements science education sign physics physical atom atomic particles molecular molecule learning study school university biochemistry scientific metallic electron proton quantum structure number laboratory weight symbols nucleus bond boiling educational numbers properties mass matter gas |
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illustration of chemistry, The periodic table of the elements, Hydrogen, Oxygen, carbon and Nitrogen atom, properties of the chemical elements exhibit a periodic dependence on their atomic numbers |
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