Electron Configurations Worksheet
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8Electron Configurations
What is the electron structure in an atom?
Why?
The electron structure of an atom is very important. Scientists use the electronic structure of atoms to
predict bonding in molecules, the charge(s) an atom might have, and the physical properties of elements.
In order for scientists to describe the electron structure in an atom, they give the electrons “addresses.”
Just like your address might include your house number, street, city, and state, an electron’s “address” has
multiple parts. In this activity, you will learn how the electrons fill up the available spaces in an atom and
how their “addresses” or configurations are assigned.
Model 1 – The Boarding House
Sunny
Sunny
Pink
Rooms
Rooms
Rooms
kitchen
kitchen
kitchen
Time: 1:00 pm
3:00 pm
5:00 pm
Manager’s Code:
1s
1
1s
2
2s
2
2p
2
1s
2
2s
2
2p
4
kitchen
kitchen
kitchen
kitche
Time: 7:00 pm
9:00 pm
11:00 pm
Manager’s Code: 1s
2
2s
2
2p
6
3s
1
1s
2
2s
2
2p
6
3s
2
3p
1
1s
2
2s
2
2p
6
3s
2
3p
3
1. Examine the boarding house diagrams in Model 1. Match each symbol below with its most likely
meaning.
____a.
I. Bunk bed for boarders
____b.
II. Manager’s code for the number of boarders in the house and
their room assignments.
____c.
1s
2
2s
2
2p
6
3s
1
III. Boarder
Electron Configuration
1
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