Open Question
Which is an example of a polyatomic ion? H2 CO3- Mg+ Ne+
561
views
3. Chemical Reactions
Polyatomic Ions
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Give the systematic name for the following polyatomic ion.
NO2–
A
nitrate
B
nitrite
C
nitrous
D
pernitrate
Verified step by step guidance1
Identify the chemical formula given: NO2–.
Recognize that NO2– is a polyatomic ion, which is a charged species composed of two or more atoms covalently bonded.
Recall the common names of polyatomic ions containing nitrogen and oxygen. NO3– is known as nitrate, while NO2– is known as nitrite.
Understand that the suffix '-ate' is typically used for the ion with more oxygen atoms, while '-ite' is used for the ion with fewer oxygen atoms.
Conclude that the systematic name for NO2– is nitrite, as it has one less oxygen atom than nitrate (NO3–).
Related Videos
Related Practice
Polyatomic Ions practice set
Problem sets built by lead tutorsExpert video explanations