History of Chemistry

Jean Beguin publishes the first chemical equation in his chemistry book, Tyrocinium Chymicum

Jan 1, 1615

mikeblaber.org
Picture scienceworld.wolfram.com/biography/Beguin.html
Text

Antoine Lavoisier publishes a list of thirty-three elements, grouping them into earths, metals, nonmetals, and gases.

Jan 1, 1789

http://elements.vanderkrogt.net/chemical_symbols.php
Picture
www.ausetute.com.au/pthistor.html
Text

Joseph Proust proposes the 'law of definite proportions'

Jan 1, 1797

antoine.frostburg.edu
Picture
www.britannica.com/EBchecked/.../law-of-definite-proportions
Text

John Dalton illustrates atoms as small circles with symbols inside to represent elements

Jan 1, 1803

http://www.brooklyn.cuny.edu/bc/ahp/FonF/Dalton.html
Text & Picture

Dmitri Mendeleev makes a formal periodic table and uses it to predict unknown elements

Feb 17, 1869

en.wikipedia.org
Picture
www.chemistry.co.nz/mendeleev.htm
Text

J.J. Thomson discovers the electron and proposes that the atom is full of positive matter with negative matter positioned inside. the 'plum-pudding' model

Jan 1, 1904

http://www.chemheritage.org/discover/chemistry-in-history/themes/atomic-and-nuclear-structure/thomson.aspx
Text
tutorvista.com
Picture

Ernest Rutherford proposes that atoms have nuclei (a positive charge) and electrons (of a small mass) orbit the nucleus at a distance

Oct 18, 1911

http://www.chemistryexplained.com/Ru-Sp/Rutherford-Ernest.html
Text
http://web.neo.edu/rjones/Pages/1014new/Lecture/chemistry/chapter_8/pages/atomic_structure_discover.html
Picture

Bohr addes on to Rutherford's model by adding energy 'shells' with specific energy levels

Jan 1, 1913

http://scienceray.com/physics/difference-between-rutherfords-model-and-bohrs-model/
Text
http://en.wikipedia.org/wiki/Bohr_model
Picture

James Chadwick discovers the neutron.

Jan 1, 1932

sasked.gov.sk.ca
Picture
www.light-science.com/chadwick.html -
Text

History of Chemistry

Period: Jan 1, 2000 to Jan 31, 2011