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Dmitri Ivanovich Mendeleev (English: /ˌmɛndəlˈeɪəf/ MEN-dəl-AY-əf;Russian: Дмитрий Иванович Менделеев, tr. Dmítriy Ivánovich Mendeléyev, IPA: [ˈdmʲitrʲɪj ɪˈvanəvʲɪtɕ mʲɪndʲɪˈlʲejɪf] (About this soundlisten); 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.
Mendeleev was born in the small Siberian town of Tobolsk as the last of 14 surviving (or 13, depending on the source) of Ivan Pavlovich Mendeleev, a teacher at the local gymnasium, and Mariya Dmitriyevna Kornileva. Dmitri’s father became blind in the year of Dmitri’s birth and died in 1847.
To support the family, his mother turned to operating a small glass factory owned by her family in a nearby town. The factory burned down in December 1848, and Dmitri’s mother took him to St. Petersburg, where he enrolled in the Main Pedagogical Institute. His mother died soon after, and Mendeleev graduated in 1855. He got his first teaching position at Simferopol in Crimea.
He stayed there only two months and, after a short time at the lyceum of Odessa, decided to go back to St. Petersburg to continue his education. He received a master’s degree in 1856 and began to conduct research in organic chemistry. Financed by a government fellowship, he went to study abroad for two years at the University of Heidelberg. Instead of working closely with the prominent chemists of the university, including Robert Bunsen, Emil Erlenmeyer, and August Kekulé, he set up a laboratory in his own apartment. In September 1860 he attended the International Chemistry Congress in Karlsruhe mood baby goodmorning coffee art cute streetart russian life family beautiful girl happy woman photooftheday picture picoftheday model best instagood inspiration motivation photography lifestyle beauty chemistry legend inspiration