Electron Configuration

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005388369
Posts: 73
Joined: Sat Sep 28, 2019 12:16 am

Electron Configuration

Postby 005388369 » Wed Oct 23, 2019 4:16 pm

How do we know what order to write the electron configuration of a particular element? In other words, how do I know when the d comes before the p?

WesleyWu_1C
Posts: 117
Joined: Thu Jul 25, 2019 12:16 am

Re: Electron Configuration

Postby WesleyWu_1C » Wed Oct 23, 2019 4:54 pm

Write the order of the electron configuration from increasing energy level (n=1, 2, 3, etc.). So that's why if you remember in class we put for element Sc's electron configuration the 3d shell before the 4s shell even though, if you read it based off the periodic table 3d comes after the 4s shell.

Emily_4B
Posts: 57
Joined: Wed Sep 18, 2019 12:21 am

Re: Electron Configuration

Postby Emily_4B » Wed Oct 23, 2019 4:59 pm

WesleyWu_3C wrote:Write the order of the electron configuration from increasing energy level (n=1, 2, 3, etc.). So that's why if you remember in class we put for element Sc's electron configuration the 3d shell before the 4s shell even though, if you read it based off the periodic table 3d comes after the 4s shell.

Would it be the same case for 4d and 5s?


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