Metallic bonding

• What type of bonding occurs between metal atoms?

  Metallic bonding
• What are the characteristic properties of metals due to metallic bonding?

  Strength, high melting and boiling points
• What do we call electrons that are free to move in metals?

  Delocalized electrons
• How do metals bond to non-metals?

  Through ionic bonding
• How do non-metals bond to other non-metals?

  Through covalent bonding
• What happens to outer shell electrons in metallic bonding?

  They are shared among all atoms
• What holds the structure of metals together?

  Electrostatic attraction between ions and electrons
• Why are metals good conductors of electricity and heat?

  Delocalized electrons carry current and energy
• What does it mean for metals to be malleable?

  They can be bent or hammered into shapes
• Why can layers in metals slide over one another?

  Due to their regular structure
• How do alloys differ from pure metals?

  Alloys contain two or more different elements
• What is the effect of different sized atoms in alloys?

  They disrupt the regular structure
• What is steel primarily made of?

  Iron
• What percentage of carbon is typically found in steel?

  One to two percent
• What additional elements can be found in steel for specific properties?

  Chromium, manganese, or vanadium
• Why is steel used in cars and planes?

  It has the strength needed for construction
• What are the properties of metals due to metallic bonding?

  • High melting and boiling points
  • Good electrical and thermal conductivity
  • Malleability
  • Strength
• How do alloys improve the properties of metals?

  • Disrupt regular atomic structure
  • Prevent layers from sliding easily
  • Increase hardness compared to pure metals