Covalent and ionic bonding.

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Covalent and ionic bonding.
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Covalent bonds .

• Between non-metals and non-metals
• Two atoms share electrons
• Both atoms gain full outer shells

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Covalent bonds are between 2 non-metals
H2
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Ionic bonds.

• Between metals and non-metals.
• Metal atom loses an electron to make a positive
  ion
• Non-metal atom gains an electron to make a
  negative ion
• Both the ions have a full outer shell
• Positive and negative ions attract each other in
  a giant ionic lattice.

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What about a metal and a non-metal?

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Na
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Cl
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Templates
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Tip three
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Ones to try

• Cl2
• H2O
• O2
• CH4
• LiF
• KCl
• MgO
• Na2O