bonding

• what is different about the number of protons and electrons in a charged ion?

  different number of electron meaning the atom has an overall charge
• what is covalent bonding ?

  the bonding of two non-metals - they share a pair of electrons
• what is metallic bonding and how does it work ?

  metal - metal bonding

  strong electrostatic attraction between posotive metal ions and negative and shared negative electrons