HW1_MS115a

HW1_MS115a - MS 115a, Problem Set #1 assigned 09/28/11 due...

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1 MS 115a, Problem Set #1 assigned 09/28/11 due 10/05/11 1. Sodium chloride (NaCl) and cesium iodide (CsI) exhibit predominantly ionic bonding. The Na + , Cl - , Cs + and I - ions have electron structures that are identical to which inert gases? 2. Determine, for each of the electron configurations given below, whether the element is an inert gas, a halogen, an alkali metal, an alkaline earth metal, or a transition metal. Justify your choices. (a) 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 3 d 7 4 s 2 (b) 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 (c) 1 s 2 2 s 2 2 p 5 (d) 1 s 2 2 s 2 2 p 6 3 s 2 (e) 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 3 d 2 4 s 2 (f) 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 4 s 1 3. Each electron has a distinct set of four quantum numbers. Indicate the set of quantum numbers of each of the valence electrons in aluminum (Al), magnesium (Mg), iron (Fe), titanium (Ti), chromium (Cr), bismuth (Bi) and tellurium (Te). 4. Assuming purely electrostatic interactions, calculate the force of attraction between a Ca 2+ and an O 2- ion, the centers of which are separation by a distance of 0.43 nm.
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HW1_MS115a - MS 115a, Problem Set #1 assigned 09/28/11 due...

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