International Year of the Periodic Table. USC. November 2019 13 nov 2019 - 13:42 CETDr. María Vallet-Regí gave the lecture "Co, Si, P, Ca, Es and other chemical elements of the Periodic Table". International Year of the Periodic Table. Faculty of Chemistry. University of Santiago de Compostela. 13 November 2019. Galería Imágenes Volver »