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18 Cards in this Set
- Front
- Back
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Democritus ( 400 B.C ) |
Theory of the Atom. |
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Antoine Lavoisier ( 1774 ) |
Matter changes but mass remains the same. |
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John Dalton ( 1803 ) |
Behavior of atoms and scientific data. |
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James Maxwell ( 1873 ) |
The theories of light and electromagnetic radiation. |
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Wilheim Roentgen ( 1895 ) |
X-Rays |
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Henri Bequerel ( 1896 ) |
Discovered the Radioactivity of substances. |
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JJ Thomson ( 1897 ) |
Discovered Electrons |
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Marie Curie ( 1898 ) |
Energy is given off of Uranium. |
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Albert Einstein ( 1905 ) |
Matter could generate a lot of energy. |
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Robert Millikan ( 1909 ) |
Measured the charge of an Electron. |
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Ernest Rutherford ( 1909 ) |
Nucleus |
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Niels Bohr ( 1913) |
Atomic structures and radiation fission. |
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Henry Moseley ( 1914 ) |
Atomic number |
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Louis de Brogile ( 1924 ) |
Electrons orbit like waves. |
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Werner Heisenburg ( 1927 ) |
Behavior of atoms and electrons move quickly. |
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James Chadwick ( 1932 ) |
Neutron |
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Otto Hahn ( 1938 ) |
Nuclear fission |
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Enrico Fermi (1942 ) |
Developed the first atomic bomb |
