Polyatomic ions list
Authored by D'Anne Cribb
Chemistry
10th - 12th Grade
NGSS covered
Used 1K+ times
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This quiz focuses on polyatomic ions, a fundamental concept in high school chemistry typically taught in grades 10-12. Students must master the memorization and recognition of common polyatomic ions by matching their names to their correct chemical formulas. The core concepts assessed include understanding the structure of polyatomic ions (groups of atoms that carry an overall charge), recognizing the naming patterns for oxyanions (particularly the -ate/-ite suffixes and the hypo-/per- prefixes), and applying systematic naming rules to predict formulas for unfamiliar ions. Students need to memorize essential polyatomic ions such as ammonium (NH₄⁺), nitrate (NO₃⁻), sulfate (SO₄²⁻), carbonate (CO₃²⁻), and phosphate (PO₄³⁻), while also understanding how the number of oxygen atoms relates to the naming conventions. The quiz requires students to demonstrate both recall of memorized formulas and application of naming patterns to determine relationships between related ions like chlorate/chlorite and bromate/bromite. Created by D'Anne Cribb, a Chemistry teacher in the US who teaches grades 10 and 12. This quiz serves as an excellent tool for both initial practice and ongoing review of polyatomic ion identification, making it ideal for classroom warm-ups, homework assignments, or formative assessment before unit tests on ionic compounds. Teachers can use this quiz to gauge student mastery of memorized polyatomic ions and their understanding of systematic naming patterns, which are essential prerequisites for writing formulas and naming ionic compounds. The varied question formats, from matching exercises to application problems with hypothetical ions, help students develop both rote memorization skills and conceptual understanding of naming conventions. This assessment directly supports NGSS HS-PS1-1 (developing models to predict properties of substances) and aligns with Common Core mathematical practices in pattern recognition and logical reasoning.
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26 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Match the polyatomic ion ammonium
NO3-
ClO3-
CN-
NH4+
OH-
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Match the polyatomic ion cyanide
NO3-
ClO3-
CN-
NH4+
OH-
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Match the polyatomic ion nitrate
NO3-
ClO3-
CN-
NH4+
OH-
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Match the polyatomic ion chlorate
NO3-
ClO3-
CN-
NH4+
OH-
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Match the polyatomic ion hydroxide
NO3-
ClO3-
CN-
NH4+
OH-
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Match the polyatomic ion chromate
MnO4-
CH3COO-
SO42-
CO32-
CrO42-
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Match the polyatomic ion sulfate
MnO4-
CH3COO-
SO42-
CO32-
CrO42-
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