Which One Doesn't Belong: Valence Shell Electron Pair Repulsion Theory - Questions

The Which One Doesn't Belong: Valence Shell Electron Pair Repulsion Theory Concept Builder is comprised of 36 questions. The questions are divided into 12 different Question Groups and spread across three difficulty levels. Questions in the same group are rather similar to one another. The Concept Builder is coded to select at random a question from each group until a student is successful with that group of questions.

There are three difficulty levels that can be engaged in through the Concept Builder. Those three levels are differentiated as follows:
 

• Apprentice Difficulty Level: Question Groups 1-4 ... These are the four simplest structures.
• Master Difficulty Level: Question Groups 1-8 ... This level includes the four Question Groups from the Apprentice Difficulty Level plus four additional Question Groups with slightly more sophisticated compounds. 
• Wizard Difficulty Level: Question Groups 1-12 ... This level includes the eight Question Groups from the Master Difficulty Level plus four additional Question Groups with the most sophisticated compounds from the entire Concept Builders. 

While the Concept Builder's format is difficult to describe by a static page, we've attempted to include the basic idea by the set of questions shown below. Unlike the format shown below, the Concept Builder format resembles more multiple choice style questions in which learners tap on an image to toggle through possible answer options for the Lewis Electron Dot Diagrams. Teachers are encouraged to do the Concept Builder in order to experience the flavor the task and to judge which difficulty levels are most appropriate for their classes. The format of the Concept Builder allows teachers to differentiate and assign two or more different Difficulty Levels.

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Valence Shell Electron Pair Repulsion Theory

  

There are 12 different Question Groups. Each question in the same group includes the same three compounds and formulas. The order in which the formulas are presented varies from question to question. There are three difficulty levels. The difficulty levels differ in terms of how many questions there are and the sophistication of the formulae and Lewis structures. 
 

Apprentice Difficulty Level: includes Question Groups 1-4
Master Difficulty Level: includes Question Groups 1-8
Wizard Difficulty Level: includes Question Groups 1-12
 

 
Question Group 1
One of these molecules has a shape that is not like the others. Which one doesn’t belong? Begin by identifying the correct Lewis electron dot structure. Then identify the one structure that leads to a molecular shape that is different than the other two.
 
CO₂
H₂O
SCl₂
 
 
 
Question Group 2
One of these molecules has a shape that is not like the others. Which one doesn’t belong? Begin by identifying the correct Lewis electron dot structure. Then identify the one structure that leads to a molecular shape that is different than the other two.
 
NH₃
BH₃
CO₃^2-
 
 
 
Question Group 3
One of these molecules has a shape that is not like the others. Which one doesn’t belong? Begin by identifying the correct Lewis electron dot structure. Then identify the one structure that leads to a molecular shape that is different than the other two.
 
BCl₃
H₃O⁺
PCl₃
 
 
 
Question Group 4
One of these molecules has a shape that is not like the others. Which one doesn’t belong? Begin by identifying the correct Lewis electron dot structure. Then identify the one structure that leads to a molecular shape that is different than the other two.
 
XeF₄
CF₄
CCl₄
 
 
 
Question Group 5
One of these molecules has a shape that is not like the others. Which one doesn’t belong? Begin by identifying the correct Lewis electron dot structure. Then identify the one structure that leads to a molecular shape that is different than the other two.
 
BCl₃ 
NCl₃ 
PF₃
 
 
 
Question Group 6
One of these molecules has a shape that is not like the others. Which one doesn’t belong? Begin by identifying the correct Lewis electron dot structure. Then identify the one structure that leads to a molecular shape that is different than the other two.
 
XeF₂
SO₂
O₃
 
 
 
Question Group 7
One of these molecules has a shape that is not like the others. Which one doesn’t belong? Begin by identifying the correct Lewis electron dot structure. Then identify the one structure that leads to a molecular shape that is different than the other two.
 
O₃
I₃^- 
ICl₂^-
 
 
 
Question Group 8
One of these molecules has a shape that is not like the others. Which one doesn’t belong? Begin by identifying the correct Lewis electron dot structure. Then identify the one structure that leads to a molecular shape that is different than the other two.
 
SO₂ 
CO₂
XeF₂
 
 
 
Question Group 9
One of these molecules has a shape that is not like the others. Which one doesn’t belong? Begin by identifying the correct Lewis electron dot structure. Then identify the one structure that leads to a molecular shape that is different than the other two.
 
SF₄
CCl₄
SO₄^2-
 
 
 
Question Group 10
One of these molecules has a shape that is not like the others. Which one doesn’t belong? Begin by identifying the correct Lewis electron dot structure. Then identify the one structure that leads to a molecular shape that is different than the other two.
 
SO₂ 
XeF₂
 I₃^-
 
 
 
Question Group 11
One of these molecules has a shape that is not like the others. Which one doesn’t belong? Begin by identifying the correct Lewis electron dot structure. Then identify the one structure that leads to a molecular shape that is different than the other two.
 
ClF₃
CO₃^2-
NO₃^-
 
 
 
Question Group 12
One of these molecules has a shape that is not like the others. Which one doesn’t belong? Begin by identifying the correct Lewis electron dot structure. Then identify the one structure that leads to a molecular shape that is different than the other two.
 
XeF₄
SF₄
BrF₄⁺