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Electron Configuration

Posted: Fri Nov 02, 2018 1:05 am
by melissa_dis4K
When finding the electron configuration for Cerium, it is [Xe] 4f^1 5d^1 6s^2, I understand the 5d^1 and 6s^2, however I am confused on where and how we get 4f^1. I'm just confused on how to find it for the f-block. I know that for the d-block we have to take the period and subtract one is there something similar happening here?

Re: Electron Configuration

Posted: Fri Nov 02, 2018 1:44 am
by Kristy 1F
Yes, the photo below can give you the sequence of orbits:
D57A7536-EF5B-4125-A702-BAE62B5C0FDA.png

Re: Electron Configuration

Posted: Fri Nov 02, 2018 8:12 am
by Gabriela Aguilar 4H
The f- block are the elements that are outside the periodic table, but they go between La (57) and Ha (72). You can just look at the periodic table.