ATOMIC THEORY

WHAT IS ATOMIC THEORY

JOHN DALTON

• Found the modern atomic theory
• Came up with Dalton Postulates
• Didn't know that atoms had protons, neutrons or electrons

JJ. THOMPSON

• Discovered electrons
• Used cathode ray tubes
• Bent the days using a magnet to see if electrons existed

EARL RUTHERFORD

• Rutherford discovered the nucleus of an atom
• The experiment involved a beam of alpha particles
• The beam went through gold foil that was very thin

NEILS BHOR

• Discovered that electrons moved through orbits
• He also introduced quantization

IRENE CURIE

• Was a nuclear physicist
• Discovered radioactivity
• Discovered the neutron

ROBERT MILKAN

• Discovered the measurement of the elementary electronic charge
• Worked on the photoelectric effect

RESOURCES

• Pictures From : Haikudeck