Scientific Tutor
Chem – Naming Ionic Compounds with Transition Metals Part 1
Author: Andrew
What sections should I know before attempting to learn this section?
—> Covalent, Ionic, and Metallic Bonds
—> Breaking Apart Ionic Compounds
How do you name ionic compounds with transition metals?
From this point, we also have to tackle ionic compounds that are made up of what are called transition metals. These metals are roughly in the center of the periodic table and do not always have the same charge. First, we will work with problems where you are given the compound, and you have to answer what the name is.
When naming a compound that contains transition metals, a roman numeral is added in parenthesis to indicate what the charge of the transition metal is. Since metals always have a positive charge, you can always assume that the Roman numeral means a positive number for the charge.
Examples: Create the name from the chemical formula using a regular periodic table. Don’t forget to use the ion periodic table if you need it.
VIDEO Ionic Naming With a Transition Metal Examples 1.
| CuCl | Copper (I) Chloride |
| FeO | Iron (II) Oxide |
| Cr2S3 | Chromium (III) Sulfide |
VIDEO Ionic Naming Demonstrated Example 4: Create the name from the chemical formula using a regular periodic table. Don’t forget to use the ion periodic table if you need it.
TiS
Step 1:
What is the name for symbol S?
Answer: Sulfur
Step 2:
How do you change Sulfur it into the two element naming system?
Answer: Sulfide
Step 3:
What is the charge on sulfur?
Answer: -2
| S2- | ||
| 1 | ||
| 1 | ||
| Total = |
Step 4:
What is the name for the symbol Ti?
Answer: Titanium
| Ti | S2- | |
| 1 | ||
| 1 | ||
| Total = |
Step 5:
What does the entire compound add up to?
Answer: +2 -2 = Zero
| Ti | S2- | |
| 1 | ||
| 1 | ||
| Total = | +2 | -2 |
Step 6:
What is the charge on the titanium?
Answer: Titanium = +2
| Ti2+ | S2- | |
| 1 | ||
| 1 | ||
| Total = | +2 | -2 |
Step 7:
What is the Roman numeral for titanium?
Answer: II (because it is +2)
Step 8:
What is the entire name of the compound?
COMPLETE ANSWER: Titanium (II) Sulfide
PRACTICE PROBLEMS: Give the name of the compound from the chemical formula using a regular periodic table. Don’t forget to use the ion periodic table if you need it.
| NiO | Nickle (II) Oxide |
| MnF2 | Manganese (II) Fluoride |
| VS2 | Vanadium (IV) Sulfide |
| FeN | Iron (III) Nitride |
| Zn2Se | Zinc (I) Selenide |
| Cu3P | Copper (I) Phosphide |
Posted in Chemistry
