Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Europiums electron configuration

  1. Jan 19, 2015 #1
    I calculated Europium to have a electron configuration of 2 8 18 32 3
    and then calculated the chemical formula of Europium Chloride which was EuCl3 which is correct
    but why is the real electron configuration of Europium 2 8 18 25 8 2 ?
     
  2. jcsd
  3. Jan 19, 2015 #2

    Borek

    User Avatar

    Staff: Mentor

    How?
     
  4. Jan 19, 2015 #3
    Using the method that for each orbital n a maximum of 2n^2 electrons can be held.
     
  5. Jan 19, 2015 #4
    Or is it a rule that the second last orbital should always have 8 electrons?
     
  6. Jan 19, 2015 #5

    Borek

    User Avatar

    Staff: Mentor

    That's not how it works, google for Aufbau principle.
     
  7. Jan 19, 2015 #6
    Ok, So can you tell mee how one can actually calculate the precise electron configuration of Europium?
     
  8. Jan 19, 2015 #7

    Borek

    User Avatar

    Staff: Mentor

    Have you checked Aufbau principle, or have you just ignored what I wrote in hope I will spoonfeed you?
     
  9. Jan 19, 2015 #8
    Yes actually I checked the Aufbau principle, so does this mean that the first orbital will have 2 electrons, the second being p having 6, the third d having 10? and an f orbital having 14 max electrons?
     
  10. Jan 19, 2015 #9

    Borek

    User Avatar

    Staff: Mentor

    Are you sure you don't mistake shell and orbital? Shell can contain several orbitals (K, or first shell, contains only 1s, L, or second, contains both 2s and 2p, d doesn't appear before 3rd, M shell, and so on).
     
  11. Jan 19, 2015 #10
    hmmmm, ok let me do some more thinking
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Europiums electron configuration
  1. Electron configuration (Replies: 9)

Loading...