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This YEAR is... The International Year of the Periodic Table 1869 is considered as the y… | Tabla periodica, Biografias de personajes historicos, Cientifico dibujo
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an old man with a beard holding a beakle and a test tube in his hand
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Scientists Drawing

This YEAR is... The International Year of the Periodic Table 1869 is considered as the year of discovery of the Periodic System by Dmitri Mendeleev. 2019 will be the 150th anniversary of the Periodic Table of Chemical Elements and has therefore been proclaimed the "International Year of the Periodic Table of Chemical Elements(IYPT2019)" by the United Nations General Assembly and UNESCO. #dimitrij #mendelejev #periodictable #elements #150years #chemistry #mybenznote #vedicina…
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