Well, if your initials were BCl3 than it would be at least.
Today we begin Unit 5: Naming, and there is some good news and bad news to go along with that.
The good news is that there is not a lot of math, no formulas, no Avogadro’s number.
The bad news is that there are some tricky rules to what to name a compound when.
So, today we’ll be introduced to how to identify a Binary Compound. A Binary compound is any compound with two elements. When the second element is a Nonmetal, we replace the ending of the element with “-ide” (Like Carbon Dioxide). There are three types of Binary Compounds.
- Molecular Compound → Nonmetal + Nonmetal
- Ionic Compounds → Metal + Nonmetal
- Binary Acids → Hydrogen + Nonmetal (The name begins with “Hydro” and the “-ide” at the end of the nonmetal is replaced with an “-ic”
Today we’ll be focusing on identifying the elements, determining if they are a metal (M) or nonmetal (NM), and identifying the type of compound. Here are a few examples:
Formula 1st Symbol 2nd Symbol Type of Compound
ZnO Zn (M) O (NM) Ionic Compound
BCl3 B (NM) Cl (NM) Molecular Compound
HBr H (Hydro) Br (NM) Binary Acid