1. Types of Chemical Bonds Notes Write everything in green font

2. Chemical Formulas  Show the number of each atom in the chemical  Example: H 2 0 -> 2 hydrogens and 1 oxygen  Hydrogen Perioxide:  H 2 O 2

3. Ionic Bonds  the force of attraction between oppositely charged ions.  An ION is an atom that gains or loses electrons.

4. Ionic Bonds  Atoms that lose electrons form positive ions.  Metals lose electrons to form CATIONS (positive ions.)  Groups 1-13 will form cations.

5.  Atoms that gain electrons form negative ions.  Nonmetals gain electrons to form ANIONS (negative ions)  Groups 15-17 will form anions. Ionic Bonds

6. Elements far from each other on the periodic table form ionic bonds

7. Properties of Ionic Bonds  The ions in an ionic compound are bonded in a repeating pattern of negative and positive ions.  High melting point and boiling point  Hard, brittle solids at room temperature

8. Covalent Bonds  The force of attraction between atoms that equally share electrons  Nonmetals bond and share electrons.  Properties: low melting and boiling points, can be hard or soft, brittle or pliable

9. Metallic Bonds  the force of attraction between a positively charged metal ion and the electrons in a metal.  There is a “sea of electrons” that is able to move around the metal. This gives metallic bonding special properties!

10. Metallic Bonding  Metals conduct electricity because the electrons are free to move.  Metals can be reshaped.  DUCTILE- can be drawn into wires.  MALLEABLE-can be hammered into shapes.  A metal can be bent without breaking.

11. Chemical Bonding Video  In your journal: Write notes on these topics  Atoms and Bonding - 3 details  Ionic Bonds – 2 details  Covalent Bonds -2 details  Metallic Bonds – 2 details