A Brief History of Chemistry
1805: Gay Lussac discovers that water is made of two parts hydrogen and one part oxygen
1932: James Chadwic discovers the neutron.
1864: Meyer develops and early version of the periodic table. 28 elements organized by valence.
1883: Svante Arrhenius develops ion theory to explain conductivity in electrolytes.
1894: William Ramsay discovers nobel gasses.
1897: J.J. Thomson discovers the electron .
1909: Sorensen invents the PH table.
1913: Soddy proposes the concept of isotopes.
1923: Gilbert Lewis develops the electron.
1932: James Chadwic discovers the neutron.
1864: Meyer develops and early version of the periodic table. 28 elements organized by valence.
1883: Svante Arrhenius develops ion theory to explain conductivity in electrolytes.
1894: William Ramsay discovers nobel gasses.
1897: J.J. Thomson discovers the electron .
1909: Sorensen invents the PH table.
1913: Soddy proposes the concept of isotopes.
1923: Gilbert Lewis develops the electron.