6-A - Chapter 6 Ionic Bonding and Main-Group Elements...

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C h a p t e r 6 Ionic Bonding and Main-Group Elements Chemistry 5th Edition McMurry/Fay
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2 Ions and Ionic Radii Main-group metals donate electrons from the atom’s highest-energy occupied atomic orbital. Na: 1 s 2 2 s 2 2 p 6 3 s 1 = [Ne] 3 s 1 Na + : 1 s 2 2 s 2 2 p 6 = [Ne] Mg: 1 s 2 2 s 2 2 p 6 3 s 2 = [Ne] 3 s 2 Mg 2+ : 1 s 2 2 s 2 2 p 6 = [Ne] Al: 1 s 2 2 s 2 2 p 6 3 s 2 3 p 1 = [Ne] 3 s 2 3p 1 Al 3+ 1 s 2 2 s 2 2 p 6 = [Ne]
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3 Ions and Ionic Radii Main-group nonmetals accept electrons into their lowest-energy unoccupied atomic orbital. N: 1 s 2 2 s 2 2 p 3 = [He] 2 s 2 2 p 3 N 3– : 1 s 2 2 s 2 2 p 6 = [He] 2 s 2 2 p 6 O: 1 s 2 2 s 2 2 p 4 = [He] 2 s 2 2 p 4 O 2– : 1 s 2 2 s 2 2 p 6 = [He] 2 s 2 2 p 6 F: 1 s 2 2 s 2 2 p 5 = [He] 2 s 2 2 p 5
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4 Ions and Ionic Radii Transition metals lose their valence-shell s - electrons before losing their d -electrons. Electrons with the highest n -quantum number are lost first. Fe:
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This note was uploaded on 02/29/2012 for the course CHM 111 taught by Professor Colyer during the Summer '08 term at Wake Forest.

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6-A - Chapter 6 Ionic Bonding and Main-Group Elements...

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