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© May 2005 Lorentz JÄNTSCHI && Sorana Daniela BOLBOACĂ

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 D01 Inorganic Chemicals D007287 +
  D01.268 Elements D004602 +
    D01.268.067 Arsenic D001151 
    D01.268.150 Carbon D002244 +
    D01.268.271 Elements, Radioactive D004603 +
    D01.268.613 Noble Gases D005741 +
    D01.268.380 Halogens D006219 +
    D01.268.406 Hydrogen D006859 
    D01.268.033 Actinoid Series Elements D008671 +
    D01.268.549 Metals, Alkali D008672 +
    D01.268.552 Metals, Alkaline Earth D008673 +
    D01.268.558 Metals, Rare Earth D008674 +
    D01.268.604 Nitrogen D009584 
    D01.268.666 Phosphorus D010758 
    D01.268.912 Trace Elements D014131 +
    D01.268.185 Chalcogens D018011 +
    D01.268.556 Metals, Heavy D019216 +
    D01.268.557 Metals, Light D019565 +
    D01.268.956 Transition Elements D028561 +
    D01.268.477 Lanthanoid Series Elements D028581 +