Naming Compounds With Transition Metals Worksheet Answers
Naming Compounds With Transition Metals: A Comprehensive Guide
Transition metals are a group of metals that are found in the d-block of the periodic table. They are known for their ability to form ions with different charges, which makes them useful in a wide range of applications. One of the key aspects of working with transition metals is being able to name their compounds correctly. In this article, we will provide a step-by-step guide on how to name compounds with transition metals.
Understanding Transition Metal Ions
Transition metal ions are formed when a transition metal loses one or more electrons to form a positively charged ion. The charge on the ion is determined by the number of electrons lost, and it can vary from +1 to +7. For example, the iron ion can have a charge of +2 (Fe2+) or +3 (Fe3+).
💡 Note: Transition metal ions are often denoted by the symbol of the metal followed by the charge in parentheses, e.g. Fe2+.
Naming Monatomic Ions
Monatomic ions are ions that consist of a single atom. To name a monatomic ion, we use the name of the metal followed by the charge in parentheses. For example:
- Fe2+ is named iron(II)
- Fe3+ is named iron(III)
Naming Polyatomic Ions
Polyatomic ions are ions that consist of multiple atoms. To name a polyatomic ion, we use the name of the metal followed by the name of the anion (negatively charged ion) and the charge in parentheses. For example:
- CuO2- is named copper(II) oxide
- MnO42- is named manganese(VII) oxide
Naming Coordination Compounds
Coordination compounds are compounds that contain a transition metal ion surrounded by one or more ligands (molecules or ions that donate a pair of electrons to the metal ion). To name a coordination compound, we use the following steps:
- Name the ligands: Use the names of the ligands, followed by the number of ligands in parentheses. For example: [Co(NH3)6]3+ is named hexamminecobalt(III)
- Name the metal: Use the name of the metal followed by the charge in parentheses. For example: [Co(NH3)6]3+ is named cobalt(III)
- Combine the names: Combine the names of the ligands and the metal to form the full name of the compound. For example: [Co(NH3)6]3+ is named hexamminecobalt(III)
Examples of Naming Compounds With Transition Metals
Here are some examples of naming compounds with transition metals:
- [Cu(NH3)4]2+ is named tetraamminecopper(II)
- [MnO4]- is named permanganate
- [Fe(CN)6]3- is named hexacyanoferrate(III)
Table of Transition Metal Ions and Their Names
Ion | Name |
---|---|
Fe2+ | iron(II) |
Fe3+ | iron(III) |
Cu2+ | copper(II) |
Mn2+ | manganese(II) |
MnO42- | permanganate |
Conclusion
Naming compounds with transition metals can seem complex, but by following the steps outlined in this article, you can easily determine the names of these compounds. Remember to always use the correct charge on the metal ion and to combine the names of the ligands and the metal to form the full name of the compound.
What is the charge on the iron ion in the compound [Fe(CN)6]3-?
+The charge on the iron ion is +3, since the overall charge on the compound is -3 and the six cyanide ions each have a charge of -1.
What is the name of the compound [Cu(NH3)4]2+?
+The name of the compound is tetraamminecopper(II).
What is the charge on the manganese ion in the compound MnO42-?
+The charge on the manganese ion is +7, since the overall charge on the compound is -2 and the four oxygen ions each have a charge of -2.
Related Terms:
- Transition metals Worksheet pdf