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Published byMarilynn McDaniel Modified over 9 years ago
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C. Periodic Patterns zShorthand (Noble gas) Configuration yCore e - : Go up one row and over to the Noble Gas. yValence e - : On the next row, fill in the # of e - in each sublevel.
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[Ar]4s 2 3d 10 4p 2 C. Periodic Patterns zExample - Germanium
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zShorthand Configuration S 16e - Valence Electrons Core Electrons S16e - [Ne] 3s 2 3p 4 1s 2 2s 2 2p 6 3s 2 3p 4 zLonghand Configuration
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zFull energy level zFull sublevel (s, p, d, f) zHalf-full sublevel D. Stability
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zElectron Configuration Exceptions yCopper EXPECT :[Ar] 4s 2 3d 9 ACTUALLY :[Ar] 4s 1 3d 10 yCopper gains stability with a full d-sublevel. D. Stability
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zElectron Configuration Exceptions yChromium EXPECT :[Ar] 4s 2 3d 4 ACTUALLY :[Ar] 4s 1 3d 5 yChromium gains stability with a half-full d-sublevel. D. Stability
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zIon Formation yAtoms gain or lose electrons to become more stable. yIsoelectronic with the Noble Gases.
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O 2- 10e - [He] 2s 2 2p 6 D. Stability zIon Electron Configuration yWrite the e - config for the closest Noble Gas yEX: Oxygen ion O 2- Ne
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