introduction to bonding

• how is a covalent bond formed

  when they share electrons
• What type of atoms does covalent bonding occur between

  non metals
• Draw a dot and cross diagram to represent a Covalent bond.

  pp

  
• How is an ionic bond formed?


  when electrons are transferred
• What is ionic bonding


  a chemical bond formed when one atom gives up one or more electrons to another atom.
• What is covalent bonding

   chemical bond formed when electrons are shared between two atoms. 
• Draw a dot and cross diagram to represent an Ionic bond.

  pp

  
• How do you work out the charge of an ion using the Periodic Table?

  Looking at the groups
• Why are all atoms neutral?

  Equal protons and electrons.
• How do you write chemical formula using polyatomic ions?

  You cannot use the periodic table to deduce the charge of these ions but you can use the information on the back of periodic table
• How do you write chemical formula using monatomic ions?


  The charge on a metal ion is equal to it’s group number. The charge

  on a non-metal ion is equal to its group number minus 8.
• The charge on a metal ion is equal to it’s group number. The charge

  on a non-metal ion is equal to its group number minus 8.