Describe the structure of metals

• How does the Electron Sea Model explain the high electrical conductivity of metals?

  The delocalized electrons in the "electron sea" can move freely and conduct electricity
• How do metal atoms arrange themselves in crystal structures?

  At lattice points in specific arrangements
• What are the three types of crystal structures for metals?

  • Body-centered cubic (bcc)
  • Face-centered cubic (fcc)
  • Hexagonal close-packed
• How do outer electrons behave in metallic bonding?

  They move freely like a sea of electrons
• What happens to metal atoms when they lose their outer electrons?

  They become positive metal ions
• What is metallic bonding?

  Sharing of outer electrons among metal atoms
• What do positive metal ions float in?

  The sea of delocalized electrons
• How do delocalized electrons contribute to conductivity in metals?

  They flow freely, allowing electricity and heat to travel
• What does the strong attraction between ions and electrons result in?

  High melting and boiling points
• How do delocalized electrons differ from electrons in covalent or ionic bonding?

  They are not localized to specific ions
• What is the key concept behind the Electron Sea Model?

  • In metallic bonding, the valence electrons of metal atoms are delocalized and form an "electron sea" around the positively charged metal ions.
  • This allows the electrons to move freely and conduct electricity.
• What holds the metal together in metallic bonding?

  The attraction between positive ions and electrons
• What role do delocalized electrons play in the conductivity of metals?

  They form a mobile charge that conducts electricity
• What property allows metals to be shaped and drawn into wires?

  Malleability and ductility
• What analogy illustrates the malleability of metals?

  Like a deck of cards that can be shuffled
• What is the structure that gives metals unique properties?

  Sea of delocalized electrons
• Why are metals good conductors of electricity and heat?

  Due to the movement of delocalized electrons
• How do layers of ions behave in metals?

  They slide over each other without breaking bonds
• Why do metals have high boiling points?

  Strong attraction between ions and electrons requires energy
• What are the key properties of metals that the Electron Sea Model explains?

  • High electrical and thermal conductivity
  • Malleability and ductility
  • Lustrous appearance
• What are delocalized electrons?

  Electrons that move freely in a metal lattice