CHAPTER 4: THE PERIODIC TABLE OF ELEMENT

4.1 The Development of the Periodic Table of Elements

4.2The Arrangement in the
Periodic Table of Elements

4.7 Transition Elements

All transition elements are metals with the following
properties:
• Solids with shiny surfaces
• Very hard compared to metals in Groups 1 and 2
• Have high densities
• Have high melting points and boiling points

Special Characteristics for Several Transition Elements in the Periodic Table Of Elements

  1. Transition elements function as a catalyst to increase the rate of reaction without undergoing chemical change at the end of the reaction. For example, iron filings are used as a catalyst in the Haber Process
  2. Transition elements form coloured ions or compounds
3. Transition elements have more than one oxidation number.

4. Transition elements can form complex ions.

Uses of Transition Elements in Industry

Transition Elements