660 likes | 678 Views
Mathematics and Science in Schools in Sub-Saharan Africa. MATERIAL SCIENCE. BONDING. Intramolecular Bonding. Lab: Observing Chemical Bonding. Lab: Observing Chemical Bonding. Data Chart. Metallic Bonds. Sea of Electrons. Metallic Bonds. Sea of Electrons. Metallic Bonds.
E N D
MATERIAL SCIENCE BONDING
Lab: Observing Chemical Bonding Data Chart
Metallic Bonds Sea of Electrons
Metallic Bonds Sea of Electrons
Metallic Bonds Sea of Electrons
What’s an ion? Coil of Wire Battery _ + _ + Compass
Coil of Wire Battery _ + _ + Compass Sodium Chloride
Switch is open Coil of Wire Battery _ + _ + Compass Sodium Chloride
The sodium atoms go to the negative side. The chlorine atoms go to the positive side Coil of Wire battery _ + _ + Compass Sodium Chloride
IONS From the Greek word meaning wanderer. Coil of Wire battery _ + _ + Compass + + + + Sodium Chloride
The positive side of the battery is call the anode. The ions that go towards it are called anions. battery _ + _ + Compass ANODE + + Anions + + Sodium Chloride
The negative side of the battery is call the cathode. The ions that go towards it are called cations. battery _ + _ + Compass CATHODE ANODE + + Cations Anions + + Sodium Chloride
Teacher Demonstration The Electric Pickle
Double Covalent Bonds Triple Covalent Bonds
Covalent bonds are the strongest bonds. COVALENT OTHER BONDING
Who Am I? Nonpolar Covalent Bonding Ionic Bonding
Flexibility Ionic Bonding Metallic Bonding
Graphite vs. Diamond Covalent Bonds Van der Waals Forces
Lab: Hydrogen Bonding Procedure 1:
Lab: Hydrogen Bonding Procedure 2:
Lab: Hydrogen Bonding Procedure 3:
Lab: Hydrogen Bonding Procedure 4:
Cohesion Adhesion
Lab: Adhesion & Cohesion Data Chart