1. Chemical Bonds

2. Chemical Bonds
A chemical bond holds atoms together with the valence electrons (the outer electrons
Three Types of Bonds:
Ionic Bond
Covalent Bond
Metallic Bond

3. Ionic Bonds
Ionic Bonds form when electrons are transferred from one atom to another, this process forms ions. These are charged particles.
Examples: Cl-, Na+, Mg+2, F-
Crystals: it’s a solid repeating pattern of Ions in 3 dimensions
Examples: salt, sugar, diamonds, quartz, 26 hundred minerals

4. Covalent Bond
A covalent bond is when electrons are shared between atoms.
Example: water, carbon dioxide, methane
Polyatomic Ions: a molecule with both covalent and ionic bonds.
Examples: ammonium, NO3-, PO4-3

5. Metallic Bond
Metallic bonds form between metal atoms, the electrons are free to move anywhere with in the mass of the metals.
Examples: Copper, steel, iron, tin, titanium
Alloys: Different kinds of metals bonded together.
Example: brass, bronze, solder.

6. Molecules and Compounds
Molecules are any two or more atoms bonded together, they could be the same or different.
Examples: O2, N2, H2O, CO2
Compounds are any two or more different atoms bonded together.
Examples: H20, CO2