Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

ArkGoLucky

  • 3 years ago

Why did "d" orbitals start at "3d" instead of "4d"?

  • This Question is Closed
  1. moongazer
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I think it is because of their energy level

  2. ArkGoLucky
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I mean before 3d is 4s so why not 4d?

  3. shubham.bagrecha
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    electrons are filled in increasing order of energies, in accordance to the aufbau principle. According to it the filling of electron is governed by "n+l" rule and "n" rule. for 3d orbital, n+l = 3+2 = 5 for 4s orbital, n+l = 4+0 = 4 since the n+l value of 4s is less than that of 3d , 4s is filled first. See the atttachment for order of filling electrons.

  4. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy