Chapter 6
Predicting Outer
Electron Configurations
Part 1
Electron Configurations
•
11Na
•
19K
•
16S
•
34Se
•
22Ti
•
40Zr
Period # = Outer Energy Level
Includes lanthanides
Includes actinides
Elements in the Same Group
• Elements in the same group have similar properties
because they have similar electron configurations.
Sublevel Blocks of the Periodic Table
Not all periodic tables
look exactly the same.
Not all periodic tables
look exactly the same.
o
Blank Periodic Table
Periodic Table and Electron Configuration
s = period #
p = period #
1
1
2
2
3
d = (period# - 1)
3
4
4
5
5
6
6
7
7
6
6
7
7
f = (period# - 2)
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.
Predict the electron configuration
for the last sublevel.
•
20Ca
4s2
•
82Pb
6p2
•
47Ag
4d9
•
92U
5f4
Predict the electron configuration for the last sublevel.
•
20Ca
•
82Pb
•
47Ag
•
92U
Homework
 Worksheet: Electron Configuration and
the Periodic Table.