Electron Configuration Worksheets - Answer Key

Electron Configuration Worksheets - Answer Key - Electron...

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Electron Configuration of Elements Page 1 of 1 ELEMENT CONFIGURATION - ANSWER KEY Element Electron Configuration Without Noble Gas Core Comments Electron Configuration With Noble Gas Core C 1s 2 2s 2 2p 2 -- [He] 2 2s 2 2p 2 N 1s 2 2s 2 2p 3 -- [He] 2 2s 2 2p 3 O 1s 2 2s 2 2p 4 -- [He] 2 2s 2 2p 4 F 1s 2 2s 2 2p 5 -- [He] 2 2s 2 2p 5 Ar 1s 2 2s 2 2p 6 3s 2 3p 6 -- [Ne] 10 3s 2 3p 6 Al 1s 2 2s 2 2p 6 3s 2 3p 1 -- [Ne] 10 3s 2 3p 1 P 1s 2 2s 2 2p 6 3s 2 3p 3 -- [Ne] 10 3s 2 3p 3 S 1s 2 2s 2 2p 6 3s 2 3p 4 -- [Ne] 10 3s 2 3p 4 Cl 1s 2 2s 2 2p 6 3s 2 3p 5 -- [Ne] 10 3s 2 3p 5 Ca 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 -- [Ar] 18 4s 2 Na 1s 2 2s 2 2p 6 3s 1 -- [Ne] 10 3s 1 K 1s 2 2s 2 2p 6 3s 2 3p 6 4s 1 -- [Ar] 18 4s 1 Cr 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 4 1s 2 2s 2 2p 6 3s 2 3p 6 3d 4 4s 2 or; 1s2 2s2 2p6 3s2 3p6 3d 5 4s 1 - Electron configuration for Cr - Order of valence electrons - Configuration of filled orbitals = stability = lower energy [Ar] 18 4s 2 3d 4 [Ar] 18 3d 4 4s 2 [Ar] 18 3d 5 4s 1 Fe 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 6 1s 2 2s 2 2p 6 3s 2 3p 6 3d 6 4s 2 - Electron configuration for Fe - Order of valence electrons [Ar] 18 4s 2 3d 6 [Ar] 18 3d 6 4s 2 Zn 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 4s 2 - Electron configuration for Zn - Order of valence electrons [Ar] 18 4s 2 3d 10 [Ar] 18 3d 10 4s 2 Cd 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 4s 2 4p 6 4d 10 5s 2 - Electron configuration for Cd - Order of valence electrons [Kr] 36 5s 2 4d 10 [Kr] 36 4d 10 5s 2 Pt 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 6 6s 2 5d 1 4f 14 5d 7 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 4s 2 4p 6 4d 10 4f 14 5s 2 5p 6 5d 8 6s 2 or; 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 4s 2 4p 6 4d 10 4f 14 5s 2 5p 6 5d 10 - Electron configuration for Pt - Order of valence electrons - Configuration of filled orbitals = stability = lower energy [Xe] 54 6s 2 5d 1 4f 14 5d 7 [Xe] 54 4f 14 5d 8 6s 2 [Xe] 54 4f 14 5d 10 Pb 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 6 6s 2 5d 1 4f 14 5d 9 6p 2 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 4s 2 4p 6 4d 10 4f 14 5s 2 5p 6 5d 10 6s 2 6p 2 - Electron configuration for Pb - Order of valence electrons [Xe] 54 6s 2 5d 1 4f 14 5d 9 6p 2 [Xe] 54 4f 14 5d 10 6s 2 6p 2 Ra 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 6 6s 2 5d 1 4f 14 5d 9 6p 6 7s 2 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 4s 2 4p 6 4d 10 4f 14 5s 2 5p 6 5d 10 6s 2 6p 6 7s 2 - Electron configuration for Ra - Order of valence electrons [Xe] 54 6s 2 5d 1 4f 14 5d 9 6p 6 7s 2 [Xe] 54 4f 14 5d 10 6s 2 6p 6 7s 2
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Electron Configuration of Ions Page 1 of 3 ION CONFIGURATION - ANSWER KEY Ion Electron Configuration Without Noble Gas Core Comments Electron Configuration With Noble Gas Core H - H = 1s 1 H - = 1s 2 - Electron configuration for H - Gain 1 electron (Full s-orbital = stability = lower energy = Noble gas configuration)
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Electron Configuration Worksheets - Answer Key - Electron...

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