C2 - Ionic Bonding

All about Ionic bonding.

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  • Created by: Abigail
  • Created on: 11-04-11 19:59

Ionic Compounds.

Ionic compounds are GIANT structures of ions. they are held together by strong forces of attraction between oppositely charged ions, that act in all directions. this type of bonding is called ionic bonding.

What type of force is it that holds ions together?

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Ionic Compounds

Electrostatic forces.

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Ionic Compounds - Fill the Gaps

Ionic compounds:

  • have h...... m............ and b............ p..........
  • c........... e..................... when m.......... or in s.............. because the c............ i...... are free to m...... about and carry the c............
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Ionic Compounds

Ionic compounds:

  • have high melting and boiling points
  • 
  • conduct electricity when molten or in solution because the charged ions are free to move about and carry the current
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The Ionic Bond

A ionic bond occurs between a metal and a non-metal atom. It invovles a transfer of electrons from one atom to the other.

This forms electrically charged ions, each of which has a complete outer energy level.

They have the electronic structure of a noble gas:

  • A........ which l...... e................ become p.................. c............ ions.
  • A........ which g...... e................ become n.................. c............ ions
  • 
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The Ionic Bond

They have the electronic structure of a noble gas:

  • Atoms which lose electrons become positively charged ions.
  • Atoms which gain electrons become negatively charged ions.
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The Ionic Bond

Example 1

sodium (Na) and chlorine (Cl) bond ionically to form sodium chloride, NaCl.

1. The s.......... atom has o.... electron in it's o........ s.........

2. The e.............. is t.................. to the c.............. atom.

3. Both a........ now have e........ electrons in their o........ shell.

4. The a........ become i......, Na+ and Cl-   5. The c.............. formed is s.......... c.............., NaCl.

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The Ionic Bond

Example 1

sodium (Na) and chlorine (Cl) bond ionically to form sodium chloride, NaCl.

1. The sodium atom has one electron in it's outer shell.

2. The electron is transferred to the chlorine atom.

3. Both atoms now have eight electrons in their outer shell.

4. The atoms become ions, Na+ and Cl-

5. The compound formed is sodium chloride, NaCl.

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The Ionic Bond

Example 2:

Magnesium (Mg) and oxygen (O) bond ionically to form magnesium oxide, MgO.

1. The m................ atom has t.... electrons in its o........ shell.

2. These t.... electrons are t.................... to the o.......... atom.

3. B...... atoms now have e........ electrons in their o........ shell.

4. The a........ become i......, Mg2+  and O2-

5. The c.............. formed is m................ o........, MgO.

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The Ionic Bond

Example 2:

Magnesium (Mg) and oxygen (O) bond ionically to form magnesium oxide, MgO.

1. The magnesium atom has two electrons in its outer shell.

2. These two electrons are transferred to the oxygen atom.

3. Both atoms now have eight electrons in their outer shell.

4. The atoms become ions, Mg2+  and O2-

5. The compound formed is magnesium oxide, MgO.

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Comments

Rebeca Lucy

very helpful and nicely set out, thanks!

Vanessa

So helpful, clearly explained, thankyou!

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