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Question:

Electron dot diagrams?

I'm very confused with how the electron dot diagrams work for all elementsI was told in my studies that the orbitals go like this:2e - 8e - 8e - 18eHowever this doesn't work to well for everything.With Al (aluminium) it's fine.3e (I would have 3 dots for my diagram)8e2eBut now I need to do one for Te (tellurium) which has 52 protonsSo I checked a site and it showed this:6e18e18e8e2eI know there are different types of orbits, however my course didn't even show anything but the 2e - 8e - 8e way.Can someone help me understand how to draw these elements without looking at a website?

Answer:

The reason Te has 18e- is because it has electrons in d orbitals which contain 10e- in itself plus 8e- from s and p2e s orbital 8e p orbital 18e d orbital 8e shouldnt show up twice i would double check that with your teacherThe electrons that matter are the outermost electrons that bond so the only ones a dot diagram will show are the outermost electrons Te happens to have 6 (2 e- in the s and 4 in the p oribitals) does that help?

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