Metallic bonding

    Cards (18)

    • What is the type of bonding present in metals?
      Metallic bonding
    • What is the structure of a metal?
      • Giant metallic structure
      • Positively charged metal ions
      • Delocalised electrons
      • Strong electrostatic forces of attraction
      • Metallic bonds act in all directions
    • Why do most metals have high melting and boiling points?

      They have strong metallic bonds that require a lot of energy to break.
    • Why can metals conduct electricity?

      Because they have delocalised electrons that move freely and carry a charge.
    • Why are alloys less malleable than pure metals?

      Alloys have different sized ions that form distorted layers, making them harder to slide over each other.
    • What charge do metal ions have?

      Positive
    • What is the force that holds metal ions and delocalised electrons together?

      Electrostatic attraction
    • What does malleable mean in the context of pure metals?

      It means the metal can be bent into different shapes.
    • How are metallic and ionic structures similar?

      Both have giant structures.
    • What are the properties of metals related to their structure?
      • High melting and boiling points due to strong metallic bonds
      • Good electrical conductivity due to delocalised electrons
      • Malleability due to layers of ions that can slide over each other
    • Why does pure iron have a melting point of 1538 °C?

      Because it is a giant metallic structure with many strong metallic bonds that require a lot of energy to break.
    • What allows metals to conduct electricity effectively?

      The presence of delocalised electrons that carry a charge through the structure.
    • What is the difference in structure between pure metals and alloys?

      • Pure metals have ions of the same size arranged in regular layers.
      • Alloys have different sized ions that form distorted layers.
      • Pure metals are more malleable, while alloys are less malleable and harder.
    • What type of bonding is present in aluminium?

      Metallic bonding
    • Describe the structure of aluminium.

      Aluminium has a giant structure with positive aluminium ions and delocalised electrons.
    • What are the names of particles X and Y in the structure of aluminium?

      X is the aluminium ion and Y is the delocalised electron.
    • Why is it possible to bend a piece of aluminium?

      Because aluminium ions are the same size, allowing layers to slide easily over each other.
    • What are the characteristics of metallic bonding?

      • Strong electrostatic forces of attraction
      • Delocalised electrons that move freely
      • Bonds act in all directions
      • Giant structure with high melting and boiling points