Electron Configuration Practice Worksheet
Electron 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:
11) 1s
2
2s
2
2p
6
3s
2
3p
4
____________________
12) 1s
2
2s
2
2p
6
3s
2
3p
6
4s
2
3d
10
4p
6
5s
1
____________________
13) [Kr] 5s
2
4d
10
5p
3
____________________
14) [Xe] 6s
2
4f
14
5d
6
____________________
15) [Rn] 7s
2
5f
11
____________________
Determine which of the following electron configurations are not valid:
16) 1s
2
2s
2
2p
6
3s
2
3p
6
4s
2
4d
10
4p
5
____________________
17) 1s
2
2s
2
2p
6
3s
3
3d
5
____________________
18) [Ra] 7s
2
5f
8
____________________
19) [Kr] 5s
2
4d
10
5p
5
____________________
20) [Xe] ____________________
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