<Li> Dmitri Petrovich Konovalov </Li> <Tr> <Th_colspan="2"> Signature </Th> </Tr> <P> Dmitri Ivanovich Mendeleev (English: / ˌmɛndəlˈeɪəf / MEN - dəl - AY - əf; Russian: Дмитрий Иванович Менделеев, tr . Dmítriy Ivánovich Mendeléyev, IPA: (ˈdmjitrjɪj ɪˈvanəvjɪtɕ mjɪndjɪˈljejɪf) (listen); 8 February 1834--2 February 1907 O.S. 27 January 1834--20 January 1907) was a Russian chemist and inventor . He formulated the Periodic Law, created a farsighted version of the periodic table of elements, and used it to correct the properties of some already discovered elements and also to predict the properties of eight elements yet to be discovered . </P> <P> Mendeleev was born in the village of Verkhnie Aremzyani, near Tobolsk in Siberia, to Ivan Pavlovich Mendeleev (1783--1847) and Maria Dmitrievna Mendeleeva (née Kornilieva) (1793--1850). His paternal grandfather Pavel Maximovich Sokolov was a Russian Orthodox priest from the Tver region . Ivan, along with his brothers and sisters, obtained new family names while attending the theological seminary . He worked as a school principal and a teacher of fine arts, politics and philosophy at the Tambov and Saratov gymnasiums . </P>

Who is credited with developing the periodic table