Name: _____________ P. O. Box spdf (Every electron has an address of its own)
Date: ____________
More Practice-Orbital Diagrams & Electron Configuration
Period: ____________
Putting It All Together…
1. The energy level n = 1 has only _____ sublevel, or _________, called the ____.
It can hold ____ electrons, just like the energy level n = 1 can only hold ____ electrons.
n = 1
2. The energy level n = 2 has these sublevels, ____, _____, _____, and _____. Since each
orbital can only hold ____ electrons, total, all of the n = 2 orbitals hold _____ electrons,
just like the energy level n = 2 can only hold _____ electrons at most.
n = 1
n = 2
3. The energy level n = 3 has these sublevels, _____, ______, ______, ______, as well as
______ 3d orbitals. Since each orbital can only hold 2 electrons each, total, all of the n
= 3 orbitals hold ______ electrons, just like the energy level n = 3 can only hold _____
electrons at most.
n = 3
More Practice with Electron Orbital Diagrams (the box thing)
Write the electron orbital diagrams (boxes with arrows) for each element below.
4. oxygen (O)
5. aluminum (Al)
6. calcium (Ca)
7. iron (Fe)
8. nickel (Ni)
9. arsenic (As)
10. barium (Ba)
n = 1
n = 2
Relating Orbital Diagrams to Electron Configuration…
11. Scientists have ___ ways of representing electrons in orbitals.
12. The first way, called _____________ _____________, is the thing we’ve been doing with the boxes and
___________.
13. The second way is called ____________ ______________, and it looks like this: 1s22s22p6. This example
would stand for the element ____________ because it has _____ total electrons.
Using Orbital Diagrams to Write Out Electron Configuration
14. You know how to write out the orbital diagram for hydrogen,
electron configuration? ________
15. You know how to write out the orbital diagram for helium,
configuration? ________
How would you write out the
1s
How would you write out the electron
1s
16. You know how to write out the orbital diagram for carbon,
How would you write the electron configuration?
______________________________________
1s
2s
2px
2py
2pz
Using the Periodic Table to Write Out Electron Configuration
17. There is a simple way to use the _____________ _____________ to determine the electron
configuration for any element.
18. Remember, the ____________ number tells us the number of ____________ levels.
19. 1s22s22p63s1 corresponds to which element? _______________
20. 1s22s22p63s23p5 corresponds to which element? ______________
21. 1s22s22p63s23p64s23d6 corresponds to which element? _____________ Even though the d block for this
problem corresponds to period number ____, we subtract _____ to give us the _____ orbitals.
Try Writing Some Electron Configurations (Addresses) Using the Periodic Table
Write the electron configuration for each of the following elements.
22. fluorine (F): ______________________________________________________________________
23. calcium (Ca): ______________________________________________________________________
24. vanadium (V): _____________________________________________________________________
25. strontium (Sr): ___________________________________________________________________
Noble Gas “Shortcut” Notation
Chemists love shortcuts! Instead of writing out the full electron configuration starting with 1s 22s2…, chemists
created a shortcut using the Noble Gas from the row above in the periodic table.
Example: calcium = 1s22s22p63s23p64s2, and its Noble Gas “Shortcut” Notation would be written as Ar4s2.
Write the Noble Gas “Shortcut” Notation for the following elements.
26. manganese (Mn) : ___________
27.
rubidium (Rb): ______________
28 sodium (Na): ______________
29.
lead (Pb): __________________