Plum Pudding Model
Proposed in 1904
Made of a positive charged pudding
No nucleus
Mass is spread out
Electrons flow and move freely
Planetary Model
Proposed in 1911
Nucleus
Mass in center
Electrons circle center
Gold foil experiment
Electrons
Circular
No protons
Positive and negative charge
History of The Atom
(author: Christian Wohnoutka)
