Transition metals

• How do transition elements compare to group 1 elements in terms of hardness and strength?

  Transition elements are harder and stronger than group 1 elements.
• What is the melting point characteristic of transition elements compared to group 1 elements?

  Transition elements have higher melting points, except for mercury.
• How do the densities of transition elements compare to those of group 1 elements?

  Transition elements have higher densities than group 1 elements.
• How does the reactivity of transition elements compare to that of group 1 elements?

  Transition elements are much less reactive and do not react as vigorously with oxygen or water.
• What are the properties of chromium compared to group 1 elements?

  • Lustrous, brittle, hard metal
  • Hard and very brittle, difficult to fuse, but easy to oxidise
• What are the properties of manganese compared to group 1 elements?

  • Good conductor, rusts easily in air
  • Strong, ductile
• What are the properties of iron compared to group 1 elements?

  • Malleable, brittle, hard
  • High melting point
• What are the properties of cobalt compared to group 1 elements?

  • Hard, malleable, and ductile
  • Fairly good conductor of heat and electricity
• What are the properties of nickel compared to group 1 elements?

  • Highly ductile and conductive
  • Malleable and soft
• What are the typical properties of transition elements?

  • They have ions with many different charges
  • Form coloured compounds
  • Are useful as catalysts
• What are the possible ion charges for chromium?

  Chromium can have ion charges of +2, +3, +4, +5, and +6.
• What are the possible ion charges for manganese?

  Manganese can have ion charges of +2, +3, +4, +5, +6, and +7.
• What are the possible ion charges for iron?

  Iron can have ion charges of +2, +3, +4, and +5.
• What are the possible ion charges for cobalt?

  Cobalt can have ion charges of +2, +3, +4, and +5.
• What are the possible ion charges for nickel?

  Nickel can have ion charges of +2 and +3.
• What are the possible ion charges for copper?

  Copper can have ion charges of +1 and +2.
• What is the colour of compounds formed by transition metals with a +2 charge?

  Compounds with a +2 charge can vary in colour depending on the metal.
• What is the colour of compounds formed by transition metals with a +6 charge?

  Compounds with a +6 charge can vary in colour depending on the metal.