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The Mole
 This program introduces the mole as the ultimate "standard container" for directly comparing large numbers of atoms. It also extends the use of the mole to standardize gas volume comparisons, and introduces Avogadro's number. (10 minutes)(more details) |
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$49.95 |
| DVD |
$49.95 |
| DVD + 3-Year Streaming |
$74.93 |
| 3-Year Streaming |
$49.95 |
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Electron Arrangement
 When physicists Erwin Schrodinger and Werner Heisenberg applied wave mechanics to the atom, they theorized that Bohr's energy levels consisted of sub-levels, or orbitals. This program demonstrates the importance of the number of electrons in the oute...(more details) |
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| VHS |
$49.95 |
| DVD |
$49.95 |
| DVD + 3-Year Streaming |
$74.93 |
| 3-Year Streaming |
$49.95 |
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The Rutherford-Bohr Atom
 With his concept of energy levels, Bohr saved Rutherford's model of the atom. This program explores Bohr's hypothesis that electrons can occupy only definite energy levels. The transfer of electrons between energy levels and the relationship between ...(more details) |
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| VHS |
$49.95 |
| DVD |
$49.95 |
| DVD + 3-Year Streaming |
$74.93 |
| 3-Year Streaming |
$49.95 |
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Metals and Ionic Solids
 The common properties of metal-its conductivity and malleability-can be explained by the types of bonding that occur between metal atoms. The properties of metals, which are covalent solids, are contrasted with those of crystals, which are ionic soli...(more details) |
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| VHS |
$49.95 |
| DVD |
$49.95 |
| DVD + 3-Year Streaming |
$74.93 |
| 3-Year Streaming |
$49.95 |
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Introducing the Players
 This program introduces the atom and the three main subatomic particles-the electron, the proton, and the neutron. The location, charge, and relative mass of these particles are demonstrated. Ernest Rutherford's model of the atom is reviewed in terms...(more details) |
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| VHS |
$49.95 |
| DVD |
$49.95 |
| DVD + 3-Year Streaming |
$74.93 |
| 3-Year Streaming |
$49.95 |
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