Atomic History
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24 terms
Terms | Definitions |
|---|---|
 Who determined the mass and charge of an electron? | Robert Millikan |
| Who bombarded gold foil with alpha particles? | Ernest Rutherford |
| Who devised the first atomic theory? | John Dalton |
| Who developed the planetary model of the atom? | Niels Bohr |
| Who discovered the first subatomic particle? | JJ Thomson |
| Who based his model on the probability of finding an electron? | Erwin Schrodinger |
| Who first coined the term "atom"? | Democritus |
| Who discovered the nucleus? | Ernest Rutherford |
| Who devised the plum pudding model? | JJ Thomson |
| Whose theory is accepted today? | Erwin Schrodinger |
| Who determined the charge?mass ratio of an electron? | JJ Thomson |
| Who was the first to suggest electrons had fixed energy? | Niels Bohr |
| Who treated electrons as waves? | Erwin Schrodinger |
| Who conducted the oil drop experiment? | Robert Millikan |
| Who said that all atoms of an element are identical in size, mass, and other properties? | John Dalton |
| Who determined that the mass of an atom was concentrated in the center? | Ernest Rutherford |
| Who showed cathode rays are composed of negative particles? | JJ Thomson |
| Who showed the electron carried the smallest possible negative charge? | Robert Millikan |
| Who had the FIRST idea of a basic indivisible particle? | Democritus |
| Who concluded that all elements contain electrons? | JJ Thomson |
| Who discovered that all gasses having the same volume and temperature have the same number of particles? | Amadeo Avogadro |
| Who distinguished the difference between atoms and molecules? | Amadeo Avogadro |
| Who found that radiation was emitted from Uranium? | Henri Becquerel |
| Who discovered 2 new radioactive elements (Ra & Po) and identified 3 types of radiation? | Marie and Pierre Curie |
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