Electron Configuration Practice Worksheet Worksheet With Answer Key
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1
2Electron Configuration Practice Worksheet
In the space below, write the unabbreviated electron configurations of the
following elements:
1)
sodium
________________________________________________
2)
iron
________________________________________________
3)
bromine
________________________________________________
4)
barium
________________________________________________
5)
neptunium
________________________________________________
In the space below, write the abbreviated electron configurations of the following
elements:
6)
cobalt
________________________________________________
7)
silver
________________________________________________
8)
tellurium
________________________________________________
9)
radium
________________________________________________
10)
lawrencium ________________________________________________
Determine what elements are denoted by the following electron configurations:
2
2
6
2
4
11)
1s
2s
2p
3s
3p
____________________
2
2
6
2
6
2
10
6
1
12)
1s
2s
2p
3s
3p
4s
3d
4p
5s
____________________
2
10
3
13)
[Kr] 5s
4d
5p
____________________
2
14
6
14)
[Xe] 6s
4f
5d
____________________
2
11
15)
[Rn] 7s
5f
____________________
Determine which of the following electron configurations are not valid:
2
2
6
2
6
2
10
5
16)
1s
2s
2p
3s
3p
4s
4d
4p
____________________
2
2
6
3
5
17)
1s
2s
2p
3s
3d
____________________
2
8
18)
[Ra] 7s
5f
____________________
2
10
5
19)
[Kr] 5s
4d
5p
____________________
20)
[Xe] ____________________
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