How to Name Ionic Compounds with Polyatomic Ions

In this video we'll write the correct name for ionic compounds with polyatomic ions (ionic compounds with three different elements).

These compounds have polyatomic ions and we’ll use the Common Ion Table (a list of polyatomic ions) to help us write the name when given the formula.

To write the name for ionic compounds with polyatomic ions we’ll use the Periodic Table and the Common Ion Table and follow some simple rules.

---Keys for Naming Ternary Ionic Compounds---

- Name the metal (the cation) as it appears on the Periodic Table.
Na+ = Sodium Al3+ = Aluminum

- 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 for compounds visit:

Drawing/writing done in InkScape. Screen capture done with Camtasia Studio 4.0. Done on a Dell Dimension laptop computer with a Wacom digital tablet (Bamboo).

[danakhalid]

I LITERALY LOVE YOU
all of your explanations are clear and they helped me so much

[blurredmirrors]

Thank you so, so much… your explanations are just perfect.

[larissapeli]

WOW THAT WAS SO HELPFUL AND EASY THANK YOU!!

[idontcareboutmyusername]

Not only is this super helpful, it's very entertaining because you sound like Kakashi from Naruto

[ChiSoxEdits]

I think KNO2 is named “I don’t KNO how to 2 do this” and Ca(OH)2 is named Carbon Ohioide

[Ballafalife]

The link is not found but I’ll look for one for the ions

[saintvalkyrie]

Hey, the printable table for the ions doesn't come out when I click on the link, I tried to find it and was unable to. Your video was very useful to me and I would really appreciate if you could direct me to the chart you use in your video. Thanks!

[aidanmathaey]

My teacher seems to use roman numerals in between the element and the compound. Do you know what that represents? Example: Titanium IV Cyanide

[pratapsalunke]

How in KNO2 NO2 have -1 charge because 2 time -1 not give +1

[somedumbbitchontheinternet]

what if its for type II or type III bonding though? This only shows type one

[kkd]

My teacher does not give me A polyatomic ion table can you please make a video of how to remember solubility charts and polyatomic ions my test is friday

[ha-khef]

Then there’s Acetate which is confusing

[loaf]

(Yo) Ya les dieron las llaves a ellos.