Atom Model

Atom Model

1. 1- Billiard Ball

   • John Dalton
   • 1803
   • All matter is made up of tiny invisible particles called atoms with nothing in them. They are indestructable

2. 2. Plum Pudding

   • J.J. Thomson
   • 1904
   • Atoms are composite objects made of pieces with positive and negative charge

3. 3. Planetary

   • Lord Ernest Rutherford
   • 1911
   • Electrons are arranged in concentric circular orbits around the nucleus, it's patterned on the solar system

4. 4. Energy Level

   • Neil Bohr & Lord Ernest Rutherford
   • 1913
   • A small dense positively charged nucleus surrounded by energy levels which contain electrons

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