Lecture 23 - 9.1 Lewis Symbols of Ions • Cations have...

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9.1
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Lewis Symbols of Ions Cations have Lewis symbols without valence electrons Lost in the cation formation Anions have Lewis symbols with 8 valence electrons Electrons gained in the formation of the anion Li• Li +1 F 1 F -
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when atoms bond, they tend to gain, lose, or share electrons to result in 8 valence electrons ns 2 np 6 noble gas configuration many exceptions H, Li, Be, B attain an electron configuration like He He = 2 valence electrons Li loses its one valence electron H shares or gains one electron though it commonly loses its one electron to become H + Be loses 2 electrons to become Be 2+ though it commonly shares its two electrons in covalent bonds, resulting in 4 valence electrons B loses 3 electrons to become B 3+ though it commonly shares its three electrons in covalent bonds, resulting in 6 valence electrons
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This note was uploaded on 05/20/2008 for the course CHEM 115 taught by Professor Larkin during the Spring '08 term at Bloomsburg.

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Lecture 23 - 9.1 Lewis Symbols of Ions • Cations have...

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