Keystone Chemisty Midterm (Jones)
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Aristotle | 4 element theory, Earth, Air, Fire, Water
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| Democritus | said the universe is comprised of small particles that cannot be divided any more
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| John Dalton | All matter is made of atoms, Atoms of the same element are identical, Atoms of different atoms are not identical, Atoms cannot be created or destroyed
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| J.J. Thomson | Used the cathode ray tube to find electrons
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| Robert Millikan | Plum-Pudding Model
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| Becquerel | discovered radioactivity in Uranium
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| Curie | discovered Polonium
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| Earnest Rutherford | Shot alpha particles @ a pice of gold foil, discovered the nucleus, and protons of an atom
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| James Chadwick | Used cloud chamber to determine the mass of an atom
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| Bohr | LInked the atom's electrons w/ photon emissions
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| DeBroglie | electrons have a wave particle duality, like light
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| Heisenberg | "Uncertainty Priciple" (cant find position and velocity of an electron @ the same time)
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| Schroedinger | created electron Wave Equation
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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