-
400
democritius
founder of atom -
Period: 400 to
atomic theory timeline
-
Dalton
thought atoms cant be made or destroyed dalton atomic theory -
Thomson
discovered electron
plum pudding planetery model -
milkman
measured the electron oil drop experiment -
Moesly
xrayed an atom -
Bohr
found the shells of electrons bohr planetary model -
Rutherford
discovered the nucleas gold foil experiment -
Schrodinger
found the electron cloud had moving particles -
Chadwick
proved the existance of the neutron -
Dimitri Mendeleev
made the perodic table