Dmitri Mendeleev

1. Dmitri Mendeleev Chemistry By Brynna O’Leary and Corinne Ciraldo

2. Backround • Dmitri Mendeleev, a Russian chemist, was born on February 8th, 1834 in Tobolsk, Western Siberia. Mendeleev was one of many children (14 to possibly 17). In schooling, Mendeleev was only an average student. He learned science from a brother-in-law. Dmitri Mendeleev completed high school at the age of 16. Dmitri was sent through college at the Central Pedagogical Institute in St. Petersburg. In 1855 Mendeleev graduated and traveled to France and Germany to study. In Heidelberg, he met Robert Bunsen. In 1861, Mendeleev, returned to St. Petersburg where he then went on to be a professor of chemistry. He was a professor for 23 years. Within those 23 years, Dmitri organized the elements into The Periodic Table, and wrote a text book for his students, Principals of Chemistry. Mendeleev also directed the bureau of weights and measures in 1893. He served as government adviser on the development of the petroleum industry. His Principles of Chemistry was long a standard text.

3. Russia Central Pedagogical Institute in St. Petersburg Principals of Chemistry

4. Research Dmitri Mendeleev was a graduate form the Pedagogical Institute. After graduating in 1855, Mendeleev went to Germany and France where he, along with Robert Bunsen, discovered the phenomenon of critical temperature. This is the temperature at which liquid and vapor can exist in equilibrium. Unfortunately, the discovery was credited to Thomas Andrews. Later, Dmitri became a professor of the general chemistry at the University of St. Petersburg. Mendeleev also played a great role in the development of the petroleum industry because he was a government adviser. Mendeleev also directed the bureau of weighs and measurements in 1893.

5. Major Contributors • Dmitri Mendeleev did not help the formation of the atom necessarily. Dmitri put the elements, or groups of the atoms, on to an organized table. Even though he did not play a huge role in the development, he made up for in this new and improved way of organizing the elements discovered and undiscovered.

6. Experiment • Dmitri Mendeleev was the first man to organize the found elements in to an organized table based on atomic mass. He practically predicted the future when organizing the table by leaving open spaces for the elements that were not found yet. When creating the table, Mendeleev put the name of the element and the atomic mass on an index card. As he arranged the cards in to rows, he noticed a pattern. The masses of each element were close together and fell in order. This was the beginning of the Periodic Table we know today (even if a few changes were made)

7. Effects on Scientific World • Mendeleev’s table most defiantly affected the scientific world. It affected the world because it gave people and other chemists an easy way to find elements and their properties. The only problem was he ordered it by atomic mass and other scientists rearranged it by atomic number. Mendeleev didn’t include noble gases on the table because they simply weren’t discovered yet .Later on his design had to be made easier to read. The table also had to be updated when new elements were found and when his predictions were proven wrong.

8. Works Cited • Flixya [picture]. (n.d.). Retrieved from http://www.flixya.com/files-photo/g/m/a/ gmailteam2035362.jp • "Dmitry Ivanovich Mendeleev." World of Scientific Discovery. Gale, 2006. Gale Biography In Context. Web. 7 Oct. 2011. •   P. Kelman and A. H. Stone (1970); I. V. Petryanov and D. N. Trifonov, Elementary Order: Mendeleev's Periodic System (1985). • GoodWP.com [picture]. (n.d.). Retrieved October 10, 2011, from http://www.goodwp.com/3d/ 18127-arcanoid-periodic-table-dmitri-mendeleev-periodic-table-of-the-chemical-elements-chemistry.html • Kiwi Web [biography]. (n.d.). Retrieved October 15, 2011, from http://www.chemistry.co.nz/ mendeleev.htm • TravelPod [picture]. (n.d.). Retrieved October 14, 2011, from http://www.google.com/ imgres?q=the+Central+Pedagogical+Institute&hl=en&gbv=2&biw=1400&bih=684&tbm=isch&tbnid=qOE9Ky7BDYy3hM :&imgrefurl=http://www.travelpod.com/photos/0/Ukraine/ %253F%253F%253F%253F%253F%253F%253F%253F%253F%253F%253F%253F.html&docid=YTP5Tttfosfg5M&imgurl=http:// images.travelpod.com/users/celestecoleman/ ukraine-2005.1147087380.pedagogical_institute.jpg&w=550&h=413&ei=3KaYTrfaDYbMsQLyvpnDBA&zoom=1&iact=r c&dur=359&sig=100385338335384457672&page=1&tbnh=151&tbnw=206&start=0&ndsp=18&ved=1t:429,r:11,s:0&tx=1 21&ty=76

9. Work Cited (continued) • Reference Wiki [picture]. (n.d.). Retrieved October 14, 2011, from http://www.google.com/ imgres?q=russia&hl=en&biw=1400&bih=723&gbv=2&tbm=isch&tbnid=9_MsbkxA9x9hwM:&imgrefurl=http://en.18dao .net/Map/Russia&docid=CNtXgFD85xzpuM&imgurl=http://en.18dao.net/images/f/f0/ Map-Russia.jpg&w=2774&h=1654&ei=4KWYTs6QEdPKsQLS14WnBA&zoom=1&iact=rc&dur=1030&sig=100385338335384457 672&page=2&tbnh=138&tbnw=232&start=15&ndsp=15&ved=1t:429,r:10,s:15&tx=128&ty=80 • Open Library [picture]. (n.d.). Retrieved October 14, 2011, from http://www.google.com/ imgres?q=Principles+of+Chemistry+by+Dmitri+mendeleev&hl=en&gbv=2&biw=1400&bih=684&tbm=isch&tbnid=fv1a jueVljlU3M:&imgrefurl=http://openlibrary.org/works/OL10720383W/ The_principles_of_chemistry&docid=vYPjMLXfETn7VM&imgurl=http://covers.openlibrary.org/w/id/ 5737488-L.jpg&w=310&h=500&ei=WKqYTqv4COqOsAKqnOytBA&zoom=1&iact=hc&vpx=1083&vpy=135&dur=156&hovh=285& hovw=177&tx=92&ty=168&sig=100385338335384457672&page=1&tbnh=151&tbnw=94&start=0&ndsp=21&ved=1t:429,r: 19,s:0 • Building blocks [Online]. (2006, December 5). Retrieved from      http://www.measurenet-tech.com/the-company/news/notable-chemists/ dmitri-ivanovich-mendeleev/

10. Work Cited (continued) • Kiwi Web [document]. (n.d.). Retrieved October 11, 2011, from http://www.chemistry.co.nz/ mendeleev.htm