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18 Cards in this Set
- Front
- Back
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argued that matter is made up of atoms, and atoms cannot be destroyed
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Democritis
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argued that matter is continuous and it can always be broken down into a smaller particle
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Aristotle
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proposed that light was a wave
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Huygen
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argued that light was a particle
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Newton
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double-slit experiment proved that light is a wave
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Young
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created the atomic model of matter. 1-there is a smallest particle.2-all atoms of a given element are identical in mass. 3-combinations. 4-reactions
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Dalton
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created the periodic table of elements.- orders them based on mass,- all elements in a column have similar chemicals
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Mendeleev
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unifies electricity and magnetism- light travels at a constant speed
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Maxwell
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discovered the connection between light and matter
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Curie
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discovers the electron, proposes the plum-pudding model
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Electron
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said that energy comes in packets. Cracks the door open for quantum physics
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Planck
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1-proves that light can be a particle-photo-electric effect
2-proves the existence of atoms 3-unifies space and time 4-E=mc squared |
Einstein
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-discovers the nucleus w/ the gold-foil experiment
-discovers protons -planetary model of the atom |
Rutherford
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-electrons have to exist at specific orbits or energy levels
-Principle of Complementarity -light is a wave;light is a particle |
Bohr
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-proposes that particles can act like waves
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Debroglie
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-comes up with an equation that says all matter can have waves
-wave equation |
Schrodinger
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-proposes the uncertainty,which states that certain pair of physical properties, position and momentum, with arbitrary precision at the same time
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Heisenberg
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discovers the nuetron
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Chadwick
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