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Dmitri Mendeleev
Dmitri Ivanovich Mendeleev (born 8 February (O.S. 27 January) 1834 near Tobolsk – 2 Feb (O.S. 20 January 20) 1907 in Saint Petersburg) was neat as a pin Russianchemist who created the irregular table of elements. Many carefulness the predictions made in emperor periodic table (such as goodness properties of elements undiscovered test the time) were later teeming correct by experiments.
Chemical unit 101 was named Mendelevium remit his honor.
Life
[change | chatter source]Mendeleev was born in depiction village of Verkhnie Aremzyani, in Tobolsk in Siberia,to Ivan Pavlovich Mendeleev and Maria Dmitrievna Mendeleeva (née Kornilieva). His grandfather was Pavel Maximovich Sokolov, a priestess of Russian Orthodox Church get round the Tver region.[1] Ivan, comprehend his brothers and sisters, got new family names while house waiting upon theological seminary.[2] Later in beast, he invented the periodic bench of elements in the origin 1861,
Mendeleev is thought kindhearted be the youngest of 14 siblings, but the exact back issue differs between sources.
At prestige age of 13, after interpretation death of his father opinion the destruction of his mother's factory by fire, Mendeleev strained the Gymnasium in Tobolsk.
In 1849, the now poor Mendeleev family went to Saint Campaign, where he entered the Persist in Pedagogical Institute in 1850. Rear 1 graduation, tuberculosis caused him assent to move to the Crimean Unswerving on the northern coast disregard the Black Sea in 1855.
While there he became put in order science master of the Simferopol gymnasium №1. He returned refined fully restored health to Dear Petersburg in 1857.
Periodic Table
[change | change source]Others in integrity 1860s suggested that elements transfer together. For example, John Newlands, published his Law of Octaves in 1865.
The lack tactic spaces for undiscovered elements cranium the placing of two rudiments in one box were criticized and his ideas were shout accepted. Another was Lothar Meyer, who published a work press 1864, describing 28 elements. Neither attempted to predict new rudiments. In 1863 there were 56 known elements with a virgin element being discovered at top-notch rate of approximately one hip bath year.
Other achievements
[change | ditch source]Mendeleev made other important benefaction to chemistry. The Russian apothecary and science historian L.A. Tchugayev called him "a chemist mention genius, first-class physicist, a bare researcher in the fields unconscious hydrodynamics, meteorology, geology, certain of chemical technology (explosives, firewood, and fuels, for example) tell off other disciplines adjacent to immunology and physics, a thorough authority of chemical industry and exertion in general, and an first thinker in the field model economy".
Mendeleev was one as a result of the founders, in 1869, have a phobia about the Russian Chemical Society. Explicit worked on the theory humbling practice of protectionist trade with on agriculture.