So, I am guessing that around about now you will be starting to teach topic 12. Topic 12 is, I believe, one of the easier AHL topics to teach.

The tricky part is writing the full electronic configuration of atoms and ions – well, the writing part is easy, explaining why 4s fills before 3d is the tricky part.

Don’t forget to teach about the elctron arrangements of ions as well!

I did find the following website useful to help supplement my own teaching notes and hope that it is also of some use to you.

It comes from UC Davies and is essentially one page of notes with anchors that you can click onto to take you to the relevant parts of the text.

Click here for the webpage.

Have a good weekend!