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| | Models of the Atom |
 | | After that, though, interest began to wane - Kelvin himself began to doubt that his model really had much to do with atoms, and when the electron was discovered by J. in 1897, and was clearly a component of all atoms, different kinds of non-vortex atomic models evolved. |
 | | Kelvin, in 1903, proposed that the atom have the newly discovered electrons embedded somehow in a sphere of uniform positive charge, this sphere being the full size of the atom. |
 | | In 1906, J. concluded from an analysis of the scattering of X-rays by gases and of absorption of beta-rays by solids, both of which he assumed were effected by electrons, that the number of electrons in an atom was approximately equal to the atomic number. |
| galileo.phys.virginia.edu /classes/252/more_atoms.html (1379 words) |
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