Atom

Atom

1. Development of the model

   • Greek Theories
     • Democritus
       • Atom
     • Aristotle
       • elements
   • John Dalton
     • Billiard ball model
   • J. J. Thomson
     • Plum pudding model
   • Ernest Rutherfor
     • Rutherford's model
   • Niels Bohr
     • Planetary model
   • Erwin Schrödinger
     • Electron cloud model

2. Atom

   • Elements
     • 1 type of atom
   • Properties
     • Atomic number (# of +)
     • Mass number (# of + + # of nº)
     • Atomic mass
       • avarage of the isotopes masses

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4. Subatomic particles

   • Neutron nº
   • Proton p+
   • Electron e-

5. Type of atoms

   • Neutral atom
   • Ion
     • Anion -
     • Cation +
   • Isotopes