Formation of Chemical Bonds

• Atoms bond together so that each atom acquires the electron configuration of the noble gas nearest it in the Periodic Table

  • an atom that gains electrons becomes an anion
  • an atom that loses electrons becomes a cation
    

• Two extremes of bonding

  • ionic bond: a chemical bond resulting from the electrostatic attraction of an anion and a cation
  • covalent bond: a chemical bond resulting from two atoms sharing one or more pairs of electrons

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