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  • 1. Ionic BondingBy: Collin Chance & Luis Marquez
  • 2. Introduction to bonding• An attraction between atoms that allows the formation of chemical substances that contain two or more atoms.• Atoms form chemical bonds to become stable.
  • 3. Ionic bonding• Ionic bonds are formed between cation and ion. Ionic bonds is a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions.• Greater charge = Greater electrostatic attraction; stronger bond = Higher melting point
  • 4. Ionic Bonding Continued• The size of the ions also affect the melting point! Ionic solids don’t conduct electricity!
  • 5. Covalent Bonds• When atoms bond covalently they count a share in the pair of electrons in the covalent bond as two electrons in their counter shell.• A single covalent bond is when two electrons are shared between atoms. A double band is when four electrons are shared and a triple is when six electrons are shared.
  • 6. Covalent Bonds Continued• A sigma bond is the end to the end overlap of the bonding orbitals, usually hybrid orbitals. The sigma bond is a single bond. A pi bond is the side to side overlap of hybridized p- orbitals. Together they form a double bond.• As bond length decreases, bond dissociation energy increases.
  • 7. Metallic Bonds• A metallic bond is formed when atoms of metal group together to for a crystal.• Alloys- a homogeneous mixture or solid solution of two or more metals, the atoms of one repulsing or occupying interstitial positions between atoms of others.