Spanish Post Office honours Mendeleev

Spanish Post Office honours Mendeleev

Spanish Post Office honours Mendeleev from http://quim.iqi.etsii.upm.es/vidacotidiana/sello.htm and G. Pinto, “A postage stamp about the Periodic Table”, J. Chem. Education, 2007, 84, 1919.

WebElements: the periodic table on the WWW [http://www.webelements.com/]

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