Videos

Introduction to Atoms
206

John Dalton's Theory
104

Discovery of Electrons
235

Alpha and Beta Particles
104

Gold Foil Experiment
379

Conclusions: Rutherford Experiment
243

Drawbacks: Rutherford Model
176

Bohr's Postulates
174

Bohr's Model of an Atom I
273

Bohr's Model of an atom II
328

Isobars and Isotopes
103

Atomic Number and Mass Number
152

Positive Rays
193