Chemistry
Mrs. Westphal
Name:___________________
Date:____________
Electron Configuration Practice
Match the atom to its correct structure.
________1.
________2.
________3.
________4.
________5.
Carbon
Neon
Magnesium
Helium
Calcium
a)
b)
d)
c)
e)
6. Place an X next to the atom that would have the following structure after it has lost or
gained the appropriate number of electrons to become its corresponding ion.
____ Fluorine
____ Phosphorus
____ Aluminum
____ Chlorine
____Magnesium
____ Lithium
____ Nitrogen
____ Oxygen
____ Sulfur
____ Boron
Write the ‘long hand’ electron configurations for the following atoms:
7. Mg:______________________________________
8. N:_______________________________________
9. As:_______________________________________
10. Mo:______________________________________
11.Ni:_______________________________________
12. Ru:______________________________________
13. Y:_______________________________________
14. Sn:______________________________________
15. Co:______________________________________
Chemistry
Mrs. Westphal
Name:___________________
Date:____________
Write the ‘short hand’ electron configurations for the following atoms:
15. C:___________________________________________
16. Cl:___________________________________________
17. I:___________________________________________
18. W:___________________________________________
19. Pd:___________________________________________
20. Mg:___________________________________________
21. N:___________________________________________
22. As:___________________________________________
23. Mo:___________________________________________
24. Ni:___________________________________________
25. Ru:___________________________________________
26. Y:___________________________________________
27. Sn:___________________________________________
28. P:___________________________________________
29. In:___________________________________________
30. Kr:___________________________________________
Extra Credit
Knowing what you do about atoms gaining and losing electrons to become ions and be like
the noble gases…Name 3 ions that would have the same electron configuration as Argon.
(This is why the ions of different elements will have the structure after they have gained or lost
their electrons.)