Multiple Choice
In ionic nomenclature, what is the name of the compound ?
5
views
5. Molecules and Compounds
Naming Ionic Compounds
Struggling with Introduction to Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
What is the correct name of the ionic compound (commonly written as AlBr3)?
A
Aluminum tribromide
B
Aluminum bromide
C
Aluminum(III) bromide
D
Aluminum(III) tribromide
Verified step by step guidance1
Identify the cation and anion in the compound AlBr3. Here, Al is aluminum, a metal that forms cations, and Br is bromine, a nonmetal that forms anions.
Determine the charge on the aluminum ion. Aluminum typically forms a +3 charge, so the cation is Al³⁺.
Determine the charge on the bromide ion. Bromine gains one electron to form Br⁻ with a -1 charge.
Balance the charges to ensure the compound is neutral. Since aluminum is +3 and each bromide is -1, three bromide ions are needed to balance one aluminum ion, giving the formula AlBr3.
Name the compound by combining the cation name and the anion name. For metals like aluminum that have only one common oxidation state, the cation name is simply 'aluminum'. The anion name is derived from bromine by replacing the ending with '-ide', resulting in 'bromide'. Therefore, the correct name is 'aluminum bromide'.
2:11mWatch next
Master Naming Ionic Compounds with a bite sized video explanation from Jules
Start learningRelated Videos
Related Practice
Naming Ionic Compounds practice set
Problem sets built by lead tutorsExpert video explanations