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Atomic Theory

New York Times: Is It Time to Upend the Periodic Table?
Media Coverage

The Philosopher’s Quest

Distillations Article
Lawrence and team, 1938

Large and in Charge

Distillations Article
Dmitri Ivanovich Mendeleev

Historical Biographies
Learn
German physicists from before World War II

Magical Thinking

Distillations Article
A photographic print toned with uranium, made around 1900.

New Transmutations

Distillations Article
Amedeo Avogadro. Edgar Fahs Smith Collection, Kislak Center for Special Collections, Rare Books and Manuscripts, University of Pennsylvania.

Amedeo Avogadro
Historical Profile
John Dalton, F.R.S., engraved by William Henry Worthington after an 1814 painting by William Allen, published June 25, 1823, in Manchester and London. Note the charts with Dalton’s atomic symbols lying on the table.

John Dalton
Historical Profile
J. J. Thomson.

Joseph John “J. J.” Thomson
Historical Profile
Dmitri Ivanovich Mendeleev as a young man.

Julius Lothar Meyer and Dmitri Ivanovich Mendeleev
Historical Profile
Portrait of Berzelius. Edgar Fahs Smith Collection, Kislak Center for Special Collections, Rare Books and Manuscripts, University of Pennsylvania.

Jöns Jakob Berzelius
Historical Profile
Jacobus Henricus van’t Hoff in 1904.

Jacobus Henricus van’t Hoff
Historical Profile
Ernest Rutherford in academic garb.

Ernest Rutherford
Historical Profile
Lise Meitner.

Otto Hahn, Lise Meitner, and Fritz Strassmann
Historical Profile
Alex Wellerstein

Telling Secrets

Distillations Article

Fairyland of Chemistry

Distillations Podcast

Holiday Greetings 2008

Distillations Podcast

John Dalton and the Scientific Method

Distillations Article
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