Extended periodic table The next six elements on the periodic table should be the last main-group elements in their period. In elements 167 to 172, the 9p and 8p shells will be filled. Their energy eigenvalues are so close together that they behave as one combined "p" shell, similar to the non-relativistic 2p and 3p shells. Thus, the inert pair effect does not occur and the most common oxidation states of elements 167 to 170 should be +3, +4, +5, and +6 respectively. Element 171 (unseptunium) is expected to show some similarities to the halogens, showing various oxidation states ranging from −1 to
The Periodic Table (Basher book) The Periodic Table (Basher book) The Periodic Table: Elements with Style is a 2007 children's science book created by Simon Basher and written by Adrian Dingle. It is the first book in Basher's science series, which includes "Physics: Why Matter Matters!", "Biology: Life As We Know It", "Astronomy: Out of this World!", "Rocks and Minerals: A Gem of a Book", and "Planet Earth: What Planet Are You On?", each of which is 128 pages long. The book is arranged in eleven chapters plus an introduction, and includes a poster in the back of the book. Each chapter is on a