Typical Transition Metals

• What are transition elements?

  Transition elements are metals.
• What are the physical properties of transition elements?

  They have high melting points and densities, and are strong and hard.
• What unique characteristics do transition elements exhibit?

  They form coloured compounds and act as catalysts.
• How does the melting point of chromium compare to that of sodium?

  Chromium has a much higher melting point than sodium.
• Which elements are considered typical transition elements?

  • Chromium (Cr)
  • Manganese (Mn)
  • Iron (Fe)
  • Cobalt (Co)
  • Nickel (Ni)
  • Copper (Cu)
• How does the density of chromium compare to that of sodium?

  The density of chromium is greater than that of sodium.
• Why is chromium considered a typical transition element?

  Because it has high melting points and densities.
• Why is sodium considered a typical group 1 element?

  Because it has low melting points and densities.
• What prediction can be made about the hardness and strength of nickel compared to potassium?

  Nickel is harder and stronger than potassium.
• Why is nickel predicted to be harder and stronger than potassium?

  Because nickel is a transition element and potassium is in group 1.
• What are the typical physical properties of sodium, magnesium, and aluminium compared to transition elements?

  • Sodium: Low melting point (98°C), low density (0.97 g/cm³)
  • Magnesium: Moderate melting point (650°C), moderate density (1.74 g/cm³)
  • Aluminium: Moderate melting point (660°C), moderate density (2.70 g/cm³)
• What are the typical physical properties of transition elements like chromium, manganese, iron, cobalt, nickel, and copper?

  • Chromium: High melting point (1890°C), high density (7.19 g/cm³)
  • Manganese: High melting point (1240°C), high density (7.20 g/cm³)
  • Iron: High melting point (1538°C), high density (7.87 g/cm³)
  • Cobalt: High melting point (1492°C), high density (8.90 g/cm³)
  • Nickel: High melting point (1453°C), high density (8.90 g/cm³)
  • Copper: Moderate melting point (1083°C), high density (8.92 g/cm³)