Lewis Dot Ionic

Use families on the periodic table to identify how many valance electrons (represented by dots) each element has. 

Metals will LOSE electrons
and
Nonmetals will GAIN electrons

Metals lose all their valance electrons (they have other electrons in layers beneath), which nonmetals gain until they have 8 valance electrons. They ionically bond in whatever ratio is necessary for all the metals to lose electrons and all nonmetals to gain until they get to 8.

Law & Theory

Scientific Laws: Patterns that we notice in nature. (WHAT is happening)

Scientific Theories: Explanations or models for what we see in nature. (WHY something is happening)

KMT or Kinetic Molecular Theory is what we use to help explain why. For example we might talk about pressure changes by talking about collisions. This isn't just a statement of the pattern, this is our explanation of what we believe is happening at the microscopic level.




Testing Acids and Bases

We used 4 different testing substances to learn about acids and bases. We also learned about their taste, usage when cleaning, pH number values, and clues to look for when you're looking at their chemical formula.

Here is a summary of the testing substances: