Copy of Electron Configuration (Longhand 2) - Oct 2022 (5/28/2026)

Last updated about 2 hours ago

3 questions

Determine which electron configurations are incorrect, then correct these that are incorrect. 

If any of these are correct, for the blank that reads, "If incorrect, what should it be?" type - "No Change Needed"

a.) 1s2 2s2 2p6 3s2 3p6 4s2 4d10 4p5 
Is it correct? _______
If incorrect, what should it be?  _______ 

b.) 1s2 2s2 2p6 3s3 3d5
Is it correct? _______ 
If incorrect, what should it be? _______

c.) 1s1
Is it correct? _______ 
If incorrect, what should it be? _______ 

Determine which elements are represented by each electron configuration. 

If you type the name of the element - use all lower case.

If you use the element abbreviation - it must follow the abbreviation rules (ex. Mo, K, or Cs).

a.) 1s2 2s2 2p4 _______ 

b.) 1s2 2s2 2p6 3s2 3p6 4s1 _______ 

c.) 1s2 2s2 2p6 3s2 3p6 4s2 3d7 _______ 

d.) 1s2 2s2 2p6 3s2 3p3 _______ 

e.) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p1 _______ 

f.) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d2 7p6 8s2 5f14 6d2_______