Transition Metals

    Cards (12)

    • Where are transition metals found on the periodic table?
      The middle.
    • How do the melting points, densities, strengths and hardness of transition metals compare to those of group 1 metals?
      Higher (transition metals)
    • How does the reactivity of transition metals with oxygen, halogens and water compare to that of group 1 metals?

      Lower (transition metals)
    • What are transition metals used for?
      Catalysts, alloys, magnets
    • Give the distinctive properties of transition metal compounds.
      Form ions with different charges and coloured compounds.
    • How big are nanoparticles?
      1-100 nanometers
    • How are nanomaterials different from bulk materials?
      Higher surface area to volume ratio.
    • What is the relationship between side length and surface-area-to- volume ratio?
      As side length decreases by a factor of ten, the surface area-volume ratio increases by a factor of 10
    • What are nanoparticles used for?
      Used in healthcare, electronics, cosmetics and catalysts
    • How big are fine particles?
      100-2500 nm
    • How big are coarse particles?
      2.5 x 10 to the power of -6 to 1 x 10 to the power of -5
    • Transition metal properties compared to group 1 properties
      transition:
      -more dense
      -harder
      -stronger
      -higher melting points
      -less reactive
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