Name____________________________________________Date_________________Period______________
Electron Configuration Practice Worksheet
In the space below, write the unabbreviated electron configurations of the following
elements:
1) oxygen ________________________________________________
2) sodium ________________________________________________
3) iron ________________________________________________
4) bromine ________________________________________________
5) barium ________________________________________________
6) nitrogen ________________________________________________
7) chlorine ________________________________________________
8) argon ________________________________________________
In the space below, write the abbreviated electron configurations of the following
elements:
9) cobalt ________________________________________________
10) silver ________________________________________________
11) tellurium ________________________________________________
12) iodine ________________________________________________
13) cesium ________________________________________________
Determine what elements are denoted by the following electron configurations:
14) 1s22s22p63s23p4 ____________________
15) 1s22s22p63s23p64s23d104p65s1 ____________________
16) [Kr] 5s24d105p3 ____________________
17) [Xe] 6s24f145d6 ____________________
18) [Xe] 6s2 ____________________
These electron configurations are NOT valid, determine what is wrong with them:
19) 1s22s22p63s23p64s24d104p5 ____________________________________________
20) 1s22s22p63s23d5 _____________________________________________________
21) [Ra] 7s25f8 _________________________________________________________
22) [Xe] _____________________________________________________________
