timeline of Atomic Structure

EUGEN GOLDSTEIN

• born September 5, 1850
• lived in Berlin
• 1886 discovered canal rays.
• 1886 discovered proton through canal rays.

jj Thomson

• born 1856
• used high-vacuum cathode-ray tube
• 1897 discovered electron with cathode ray tube
• 1904, proposed plum pudding model.

James Chadwick

• Born October 20, 1891
• He used particle radiation to prove the neutron existed
• in 1935 Chadwick got a nobel peace prize for discovering the neutron
• He discovered the neutron in 1932

ERNEST RUTHerford

• born: august 30, 1871
• he discovered the radioactive half-life
• 1911, conducted the gold foil experiment
• he discovered the nucleus through the experiment

BIbliography

• http://chemed.chem.purdue.edu/genchem/history/goldstein.html
• http://www.britannica.com/biography/Eugen-Goldstein
• http://www.chemheritage.org/discover/online-resources/chemistry-in-history/...
• http://www.nobelprize.org/nobel_prizes/physics/laureates/1935/chadwick-fact...
• http://www.chemheritage.org/discover/online-resources/chemistry-in-history/...