Electron Configuration for Iron

  • Thread starter Quincy
  • Start date
  • #1
227
0
I just need to refresh my memory:

When writing electron configurations for elements in the d block such as Iron (Fe), would you write it like this: 1s2 2s2 2p6 3s2 3p6 4s2 4d6

OR

like this: 1s2 2s2 2p6 3s2 3p6 4s2 4p6 4d6
 

Answers and Replies

  • #2
Ygggdrasil
Science Advisor
Insights Author
Gold Member
2021 Award
3,470
4,067
I just need to refresh my memory:

When writing electron configurations for elements in the d block such as Iron (Fe), would you write it like this: 1s2 2s2 2p6 3s2 3p6 4s2 4d6

This is perfectly acceptable except it's 3d6, not 4d6.

like this: 1s2 2s2 2p6 3s2 3p6 4s2 4p6 4d6

This is incorrect. It has too many electrons.
 
  • #3
227
0
This is perfectly acceptable except it's 3d6, not 4d6.
isn't Iron in the 4th period though?
 
  • #4
Borek
Mentor
28,883
3,429
isn't Iron in the 4th period though?

It doesn't matter. You can't fill 4d before 3d.
 
  • #5
227
0
Write the electron configuration (long way) for yttrium:

1s2 2s2 2p6 3s2 3p6 4s2 4p6 4d10 5s2 5p6 5d1

-- is that correct?
 
  • #6
Borek
Mentor
28,883
3,429
No. You have just ignored my previous post.
 
  • #7
227
0
Sorry; how about this:
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d1

how about this one: Write the electron configuration using the Noble Gas shortcut for mendeleevium:

[Rn] 7s2 6f13
 
Last edited:

Related Threads on Electron Configuration for Iron

Replies
0
Views
3K
  • Last Post
Replies
2
Views
88K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
9
Views
2K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
8
Views
6K
  • Last Post
Replies
4
Views
2K
  • Last Post
Replies
2
Views
1K
  • Last Post
Replies
1
Views
52K
Top