Predicting Outer Electron Configurations

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Chapter 6

• Predicting Outer Electron Configurations
• Part 1

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Electron Configurations

• 11Na
• 19K
• 16S
• 34Se
• 22Ti
• 40Zr

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Period Outer Energy Level
Includes lanthanides
Includes actinides
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Elements in the Same Group

• Elements in the same group have similar
  properties because they have similar electron
  configurations.

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Sublevel Blocks of the Periodic Table
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Not all periodic tables look exactly the same.
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Not all periodic tables look exactly the same.
o
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Blank Periodic Table
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Periodic Table and Electron Configuration
s period
p period
1 2 3 4 5 6 7
1 2 3 4 5 6 7

d (period - 1)
6 7
6 7

f (period - 2)
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Predict the electron configuration for the last
sublevel.

• 20Ca
• 82Pb
• 47Ag
• 92U
• You can use the periodic table from the front of
  your notebook to find these elements.

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Predict the electron configuration for the last
sublevel.

• 20Ca 4s2
• 82Pb 6p2
• 47Ag 4d9
• 92U 5f4

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Predict the electron configuration for the last
sublevel.

• 20Ca
• 82Pb
• 47Ag
• 92U

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Homework

• Worksheet Electron Configuration and the
  Periodic Table.