Quartz 4

Transition Elements

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Metals found between Group II and III of Periodic table → called transition elements.

Common Transition metals:

  • Titanium
  • Vanadium
  • Chromium
  • Manganese
  • Iron
  • Cobalt
  • Nickel
  • Copper
  • Silver
  • Tungsten
  • Platinum
  • Gold

Important

Elements in group 12 are NOT transition metals (e.g. zinc)

Physical Properties
  • Good conductors of heat and electricity
  • High melting and Boiling points
  • High density
  • Variable Oxidation States
  • Catalysts
Chemical Properties
  • They form ions with variable oxidation states in their compounds
    • E.g. copper(II) and copper(I) ions
  • They form coloured compounds
    • E.g. aqueous copper(II) sulfate is a blue solution

Note

White solids or colourless solutions are not considered coloured

  • Elements and/or their compounds → often able to act as catalysts

Note

Catalyst is a substance that increases rate of chemical reactions and remains chemically unchanged at the end of the reaction

They can usually act as catalysts

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