jan 1, 1911 - Ernest Rutherford
Description:
He discovered the Planetary model by using gold foil and alpha-particles. He concluded that a positive charge must exist at the center of the atom and not spread throughout the atom. Concluded that the atom has a nucleus and orbiting electrons.Added to timeline:
5 months ago
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Atomic History_ Vallejo
Date:
jan 1, 1911
Now
~ 108 years ago
