Editing 1987D AP Free Response Question (Atomic Struture)
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Use the details of modern atomic theory to explain each of the following experimental observations.<br> <br> a) Within a family such as the alkali metals, the ionic radius increases as the atomic number increases<br> b) The radius of the chlorine atom is smaller than the radius of chloride ion, Cl<sup>1-</sup> (Radii: Cl atom = 0.99A, Cl<sup>1-</sup> ion = 1.81A, A = angstroms, 1m = 1E10A)<br> c) The 1st ionization energy of aluminum is lower than 1st ionization of magnesium. (Mg = 7.6eV, Al = 6.0eV, eV = electron Volts). <br> d) For magnesium, the difference between the 2nd and 3rd ionization energies is much larger than the difference between the 1st and 2nd ionization energies. ( 1st IE = 7.6eV, 2nd IE = 14eV, 3rd IE = 80.eV).<br> <br>
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