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Effective Nuclear charge 
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Mar410, 07:35 PM

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1. The problem statement, all variables and given/known data
"What are the most stable chlorides of Gallium and Thallium. Explain your answer in terms of Z_{eff}. 2. Relevant equations Zeff = Z  S Z = number of protons S = number of core electrons 3. The attempt at a solution Well my attempt at a solution is that GaCl3 and TlCl3 are the most stable chlorides of Ga and Tl. Ga has 31 protons and 28 core electrons so Zeff = 31  28 = +3 valence electrons (4s^{2}4p^{1}). The same also applied for Thallium so Zeff = 81 78 = +3 valence electrons (6s^{2}6p^{1}). So Ga^{+3} and Cl^{1} = GaCl_{3} and Tl^{+3} and Cl^{1} = TlCl_{3} 1. The problem statement, all variables and given/known data 2. Relevant equations 3. The attempt at a solution 


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