CHEM 11b Lecture 5: Chem24
6 Feb 2017
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Cr and cu have abnormal electron configurations - anomalous electron configurations. D-block elements lose s electrons before the d electrons. For transition metals, electrons are removed from the s orbital before the d orbital. Ferromagnetism, magnetic moments align within each domain. His observation concluded that the chloride ions could play different roles, thereby revealing the true structure of this type of compound. Werner suggested that the structure of these compounds consisted of a central metal ion (co3+) surrounded by six covalently bonded ligands. Cl- ions can be part of the coordination sphere (i. e. serve as ligands) or serve as counterions, thereby making the compound neutral. Write formulas differently to show they aren"t the same and reflect the structure. Inside the brackets are the coordination complex: central metal ion first, and inside the parentheses is the first ligand then followed by the next one. Coordination number counts the number of bonds between ligands and the central metal atom.
