Writing the Name for Ca(CN)2 (and Lewis Structure)
In this video we'll write the correct name for Ca(CN)2 and then write the Lewis Structure for the compound.
To write the name for Ca(CN)2 we’ll use the Periodic Table and follow some simple rules. Because Ca(CN)2 has a polyatomic ion we’ll need to use a table of names for common polyatomic ions, in addition to the Periodic Table.
---Keys for Naming Ternary Ionic Compounds---
1. Name the metal (the cation) as it appears on the Periodic Table. Na+ = Sodium Mg2+ = Magnesium Al3+ = Aluminum
2.Find the polyatomic ion on the Common Ion Table and write the name.
Note: It is possible to have two polyatomic ions such as NH4NO3. In this case find and write both names as found on the Common Ion Table.
For a complete tutorial on naming and formula writing visit: