Periodic Table, The: Past, Present, And Future by Geoffrey Rayner-canham;

Author:Geoffrey Rayner-canham;
Language: eng
Format: epub
ISBN: 9789811218507
Publisher: World Scientific Publishing Company
Published: 2020-11-15T00:00:00+00:00

Chapter 8

Patterns among the Transition Metals

In this chapter, we will deconstruct the monolithic block of transition metals. Traditionally, classification has been by Group, but there are far richer patterns and trends to be found. By using chemical criteria for assignment, a hybrid approach to categorizing and clustering transition metals offers many advantages. Nevertheless, ambiguities arise as to the assignments that we choose.

The first task is to define the transition metals, which is not quite as obvious as it may seem. The main group elements are always identified as the members of Groups 1 to 2, and 13 to 18; that is, the s-block and p-block elements. In addition, about half of textbook sources include Group 12 as main group elements [1]. One might justifiably conclude by deduction that Groups 3 to 11, or Groups 3 to 12, would be the transition metals. As with much of inorganic chemistry, it is not that simple.

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