Ionic Compounds III
The stock system: Note that some books now use the Roman numerals for nonmetals also, such as
phosphorus (III) chloride for PCl3.
Key (Multivalent Cations)
Lewis Structures Worksheet #2
j. Draw all three resonance structures for CO32-
l. Draw both resonance structures of ozone (O3)
* Recall that Lewis structures of po
Review of Molar Conversions (SHOW ALL WORK)
1. How many moles of magnesium is 3.01 x 10 22 atoms of magnesium?
2. How many molecules are there in 4.00 moles of glucose, C 6H12O6?
3. How many moles are 1.20 x 1025 atoms of phosphorous?
Ionic Compounds II
A polyatomic ion is a group of covalently bonded atoms that together have a charge. (The prefix polymeans many.) Since there is an ionic bond between the ions, the rules of ionic compounds from the first