Name ___________________________ Hour _________________ Date _____________

Electron Configuration Practice WorksheetWrite the electron configurations using arrows of the following elements: 1)            Magnesium       ______________________________________________________

 

2)            Cobalt              ______________________________________________________

 

3)            Krypton           ______________________________________________________

 

4)            Beryllium          ______________________________________________________

 

5)            Scandium         ______________________________________________________

 

Write the electron configurations of the following elements:  6)            Nickel              ______________________________________________________

 

7)            Cadmium          ______________________________________________________

 

8)            Selenium           ______________________________________________________

 

9)            Strontium          ______________________________________________________

 

10)        Lithium ______________________________________________________

 

 

Name ___________________________ Hour _________________ Date _____________Determine what elements are denoted by the following electron configurations:

11)        1s22s22p63s23p5  ____________________

12)        1s22s22p63s23p64s23d104p65s2  _____________________

13)        [Kr] 5s24d105p4  ___________________

14)        [Xe] 6s24f145d7  ___________________

15)        [Rn] 7s25f12  ___________________

Determine whether the following electron configurations are or are not valid:

16)        1s22s22p63s23p64s24d104p6       __________________

17)        1s22s22p63s33d6                        _________________

18)        [Rn] 7s25f9                                __________________

19)        [Xe]                                         __________________

20)       [Ne] 3p5 3s2                             __________________