History of the aAtom

Democritus Discovery

400

Democritus was a scientist from Ancient Greece. He was very influental to the world today because he made the first model of the atom, which was just a sphere. Democritus' theory was called the Atomic Theory of the Universe.

Dalton Discovery

Jan 1, 1803

Dalton discovered the concept the Law of Partial Pressures in 1803.

James Clerk Maxwell Discovery

Jan 1, 1856

Maxwell discovered a lot about electromagnitism

Tompson Discovery

Jan 1, 1897

JJ Tompson discovered the electron in 1897

Rutherford Discovery

Jan 1, 1907

Rutherford discorvered the helium nucli in 1907

Bohr Model of Atom

Sep 30, 1922

Bohr made the model of the atom in 1922

Chadwick Discovery

Sep 30, 1932

Chadwick discovered the netroun