metallic bonding

what is a metallic bond?

the electrostatic attraction between the positive metal ions and negative delocalised electrons

how are metallic bonds formed and how are they arranged?

• when metal atoms lose an electron to form positive ions surrounded by negative delocalised electrons

• arranged into a regular (giant) lattice structure

what does the strength of a metallic bond depend on?

• number of protons

  • more protons = stronger bond

• number of free electrons

  • more electrons = stronger bond

• size of ion

  • smaller ions = stronger bond

what are the properties of metals?

• good conductors of heat and electricity

  • free delocalised electrons which can carry thermal energy/a charge

• high melting and boiling points

  • due to strong electrostatic forces of attraction

• malleable and ductile as layers of ions can slide over each other