d block

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April Meza 3K
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Joined: Sat Sep 21, 2019 12:36 am

d block

Postby April Meza 3K » Sun Oct 20, 2019 11:01 pm

Can someone explain the importance of the d-block when doing electron configurations? Please and thank you!

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Re: d block

Postby Chem_Mod » Sun Oct 20, 2019 11:07 pm

All the term d-block means is that elements in that area of the periodic table have valence electrons in the d sub-shell.

Ryan Yee 1J
Posts: 101
Joined: Sat Aug 17, 2019 12:16 am

Re: d block

Postby Ryan Yee 1J » Sun Oct 20, 2019 11:10 pm

When doing electron configurations, the D block is one n level down compared to the other blocks. So when writing increasing electron configurations from argon to potassium and calcium, the newest electrons that you add go to the S and P blocks at the n=4 level, but once you get to scandium the next electron is added to the d block at the n=3 level because the electron is more stable at a lower radius than it would to go to 4p

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