Atomic Models

  1. Democritus= 1st idea of atoms

  2. Aristotle= Everything is made of a combination of air, earth, fire, or water

  3. Dalton= Bill Board Model; said that atoms are uniform and solid spheres

  4. Becquel= Discovered radiation

  5. Thomson= Plum Pudding Model; discovered electrons

  6. Rutherford= Nuclear Model; discovered nucleus

  7. Bohr= Planetary Model; discovered electron energy levels

  8. Schrodinger= Orbital Model; discovered electron orbitals

  9. Chadwick= Revised Planetary Model; discovered neutrons

  10. Many Scientists= Modern Model; P, N, E are made of smaller parts