chem review 2 - closer and closer together. Lewis dot...

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In the photoelectric effect, light was shined on a piece of metal in vaccum. The photoelectrons were emitted and caused for a photocurrent to flow. Experimental results: The kinetic energy and the photocurrent (number of electrons emitted per second) were measured as a function of intensity and frequency. No electrons were emitted below the threshold frequency independent from the intensity. Electrons were emitted when it was above the threshold frequency. Photocurrent was proportional to the frequency. Work function, energy required to remove an electron from a metal. Atomic radii decreases from left to right because the effective potential nuclear charge increases from left to right due to increasing atomic number. So more electrons will be added to the shell, shield and constant) thus coulumbic force pulls electrons closer together l to right the nuclei will pull the electrons
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Unformatted text preview: closer and closer together. Lewis dot diagrams shows connectivity and bond order between the atoms in a molecule. It is based by the rule of the octet, giving eight electrons around each atom except for H to obtain stability and also to give its lowest configuration energy. VSEPR helps predict molecular and electronic geometries based on the repulsion between the electrons to minimize the coloumb force between bonding and lone pairs. Provides shape of molecule in its lowest potential energy arrangement. VSEPR helps predict molecular and electronic geometries based on the electron pair repulsion to minimize the Couloumb force between bonding and lone pairs. It provides the shape of the molecule in the lowest potential energy arrangement....
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This note was uploaded on 03/20/2008 for the course CH 301H taught by Professor Campion during the Fall '07 term at University of Texas at Austin.

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