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460
Democritus
Called the particles of a matter atoms. -
John Dalton
Formed an atomic theory. -
JJ Thomson
Discovered electrons and isotops. -
The atomic nucleus
Albert Einstein developed his mass-energy equation E=mc2 -
E Rutherford
Use gold-foil experiment to state the mass of an atom. -
Gold foil
To probe the stucture of the atom performed by Hans Geiger and Ernest Marsden. -
Neils Bohr
Stated the electrons moved around the nuclius. -
Schrodinger
Introduced the Schrodinger equation. -
Chadwick
Discovered the neutron -
Atomic bomb
The atomic bomb was dropped on japan in 1945.