The articles below may help you place post-16 model of the atom within the wider context of current chemistry and provide resources for use in the classroom.

Iridium form compound in +9 oxidation state

The title says it all. For the first time, a compound has been isolated that contains an element in a +9 oxidaton state. Up until that point, the highest known oxidation state was +8. The paper, published in Nature, presented evidence for the existence of [IrO4]⁺.

Getting the numbers right

(this article is paid for Royal Society of Chemistry content)

This looks at the influential work of Johannes Rydberg and his contribution to our understanding of atomic structure. Whilst his contribution has not been covered within this course, it is worthwhile being aware of his work and the ideas he developed. 

Nitrogen with five bonds

This article examines the case for a new definition of hypervalency ie. atoms bonding to more atoms than the octet rule would allow. What is interesting in this article, is to see the ongoing relationship between what is taught in the lecture theatre and what is going on in the world of research. This article can be used to highlight the fact that our understanding of reality is changing as new experimental data comes to light. The post-16 model of the atom still remains a model. 

Electrons and atoms

This PDF link of a book from the Longman Physics Topics series is an excellent resource looking at the development in our understanding of atoms and electrons. Although an old book (1972), there is concise chapter on the development of the atomic model.

Trouble in the periodic table

This intriguing article looks at the challenges we face when organising the elements and where to place certain elements. With reference to the post-16 model of the atom, some students may find this peaks their curiosity.

Lawrencium experiment could shake up periodic table

The 1st ionisation energy of lawrencium has been measured suggesting that it, and its close cousin lutetium, should belong in the d-block of the periodic table.