Lesson 5 Ionic Compounds - Naming and Formulas
Naming Binary Ionic Compounds
What does the prefix “bi” mean?
B5. 2 bicycle
Bicycle, biyearly, bivalve, bifocal, binary are all words that utilize the prefix “bi.” Do you know what the prefix “bi” stands for? The answer is two. In this part of the lesson, you will learn how to name binary ionic compounds, or compounds
that contain two elements—a metal and a non-metal—by following a simple set of guidelines.
Remember from Science 9 that compound names are not proper nouns, so do not use capital letters.
1. You can identify the compound as binary ionic because it is a metal element bonded to a non-metal element.
2. Write the name of the metal element first.
3. Write the name of the non-metal element second, changing the ending to “ide.”
2. Write the name of the metal element first.
3. Write the name of the non-metal element second, changing the ending to “ide.”
Remember from Science 9 that compound names are not proper nouns, so do not use capital letters.
Examples
Each example has a video to go with it. To play the video, click on the play icon next to the example.Identify the elements in the compound as being a metal bonded to a non-metal.
potassium—metal
oxygen—non-metal
This is an ionic compound.
oxygen—non-metal
This is an ionic compound.
Write the name of the non-metal element, changing the ending to “ide.”
Oxygen becomes oxide.
Watch this video to see a teacher work through this example. https://adlc.wistia.com/medias/d1xqd3gmp5
Identify the elements in the compound as being a metal bonded to a non-metal.
aluminium—metal
chlorine—non-metal
This is an ionic compound.
chlorine—non-metal
This is an ionic compound.
Write the name of the non-metal element, changing the ending to “ide.”
Chlorine becomes chloride.
Watch this video to see a teacher work through this example. https://adlc.wistia.com/medias/0sbhpgcnjc
Identify the elements in the compound as being a metal bonded to a non-metal.
magnesium—metal
nitrogen—non-metal
This is an ionic compound.
nitrogen—non-metal
This is an ionic compound.
Write the name of the non-metal element, changing the ending to “ide.”
Nitrogen becomes nitride.
Watch this video to see a teacher work through this example. https://adlc.wistia.com/medias/n2zvqb5s1s
Identify the elements in the compound as being a metal bonded to a non-metal.
barium—metal
sulfur—non-metal
This is an ionic compound.
sulfur—non-metal
This is an ionic compound.
Write the name of the non-metal element, changing the ending to “ide.”
Sulfur becomes sulfide.
Watch this video to see a teacher work through this example. https://adlc.wistia.com/medias/0im0hviti9
Read This
Please read page 42 in your Science 10 textbook. Make sure you take notes on your readings to study from later. You should focus on naming binary ionic compounds. Remember,
if you have any questions or you do not understand something, ask your teacher! Practice Questions
Complete the following practice questions to check your understanding of the concept you just learned. Make sure you write complete answers to the practice questions in your notes. After you have checked your answers, make corrections to your responses
(where necessary) to study from.- Provide the correct IUPAC name for each of the following compounds.
ZnS Li3P NaF MgI2 CaBr2 K3N Al2O3
ZnS zinc sulfide Li3P lithium phosphide NaF sodium flouride MgI2 magnesium iodide CaBr2 calcium bromide K3N potassium nitride Al2O3 aluminium oxide