In the video, you learned how to name cations and anions. A summary of the steps is shown in this table.
| s-Block Cations |
Step 1: Name the element Step 2: Add the word “ion” |
| Non-s-Block Cations |
Step 1: Name the element Step 2: Add the charge as a Roman numeral in parentheses Step 3: Add the word “ion” |
| Anions |
Step 1: Drop the end of the element name Step 2: Replace the ending with “-ide” Step 3: (Optional) Add the word “ion” |
Let's Practice
Practice naming cations and anions by completing this activity. Chose the correct name for each ion.
Name the Ion
O2-
Anions are named by replacing the ending of the element's name with “-ide.”
Anions are named by replacing the ending of the element's name with “-ide.”
Anions are named by replacing the ending of the element's name with “-ide.”
Fe3+
Non-s-block cations are polyvalent, which means they can form multiple ion charges. Therefore, their name must specify the charge in that instance by using a Roman numeral in parentheses.
Non-s-block cations are polyvalent, which means they can form multiple ion charges. Therefore, their name must specify the charge in that instance by using a Roman numeral in parentheses.
Non-s-block cations are polyvalent, which means they can form multiple ion charges. Therefore, their name must specify the charge in that instance by using a Roman numeral in parentheses.
Cl-
Anions are named by replacing the ending of the element's name with “-ide.”
Anions are named by replacing the ending of the element's name with “-ide.”
Anions are named by replacing the ending of the element's name with “-ide.”
Ca2+
Cations from the s-block are named by simply adding the word “ion” after the element's name.
Cations from the s-block are named by simply adding the word “ion” after the element's name.
Cations from the s-block are named by simply adding the word “ion” after the element's name.
Cu+
Non-s-block cations are polyvalent, which means they can form multiple ion charges. Therefore, their name must specify the charge in that instance by using a Roman numeral in parentheses.
Non-s-block cations are polyvalent, which means they can form multiple ion charges. Therefore, their name must specify the charge in that instance by using a Roman numeral in parentheses.
Non-s-block cations are polyvalent, which means they can form multiple ion charges. Therefore, their name must specify the charge in that instance by using a Roman numeral in parentheses.
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