MODULE 4

• IONIC BOND


  Transfer of electrons to achieve full outer shell of electrons, following the octet rule.

  Occurs between metal and non-metal
• Ions attract forming ionic bonds.
• cation


  positively charged
• anion

  negatively charged
• covalent bonds


  Sharing of electrons

  Molecular compound

  Occur between nonmetals

  Typically shared in pairs

  Weaker bonds that ionic bonds.
• polar covalent and non-polar covalent

  2 kinds of covalent bonds
• polar covalent

  Unequal sharing of electrons

  Unlike atoms

  Polar (+)(-) attract
• non polar covalent


  Equal sharing of electrons

  Occurs only when all of the atoms in the molecule belong to the same element.
• atoms


  Are single neutral particles.
• molecule


  Group of two or more atoms bonded together.

  Neutral Particles.

  Diatomic in chemical reaction
• ions

  Positively and Negatively charged particles.

  charged species in which the number of protons and electrons in an atom is unequal.
• 
  

  polyatomic ions: (cation/anion) containing more than one atom.