PRESENTATION OUTLINE
BONDING
- Ionic bonds: bonds between metals and non-metals
- Covalent bonds: bonds between two non-metals
- Metallic: bonds between many of the same metal
EXPLAINATION
- Sodium has one valence electron that it is willing to share
- Chlorine has one space for an electron to fill (it has seven valence electrons)
- Sodium gives it's one valence electron to chlorine to fill chlorine's valence shell
- They end up with a neutral charge because of their bond.
NaCl
The chemical formula for sodium chloride is
NaCl (aka salt)
In a chemical formula, the metal will always be before the nonmetal
Hence: NaCl
NaCl is a a linear VSEPR
Sodium chloride is used as table salt to give your food some flavor, and without salt, fish wouldn't be able to live in the ocean.
An example of a covalent bond is H2O
In the water diagram in the previous slide, hydrogen has one valence electron and oxygen has six. To have neutral charges, you will need two hydrogen atoms to share electrons with oxygen.
The chemical formula is H2O because you always start with the element that is farther to the left of the periodic table
This covalent bond is a bent VSEPR
Water is used to hydrate any living thing, for cleaning, and without it you would not be able to survive.
Zinc can be used in in sunblock lotion to protect our skin from the sun's harsh UV rays