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Calculating Formal Charge: Definition & Formula

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question 1 of 3

What is the formal charge of the nitrogen in the ammonium ion in the following picture?

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1. What is the formal charge of the oxygen labeled oxygen 1 in the following illustration?

2. What is the formal charge of the hydrogen 1 in the following molecule?

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About This Quiz & Worksheet

This quiz and corresponding worksheet will help you gauge your understanding of how to calculate formal charge. Topics you'll need to know to pass the quiz include understanding how to find the formal charge in given problems as well as knowing the defining characteristics of a formal charge.

Quiz & Worksheet Goals

Use these assessment tools to assess your knowledge of:

  • Charge of the hydrogen 1 in a molecule
  • The defining characteristics of a formal charge
  • The formal charge of the oxygen labeled oxygen 1

Skills Practiced

This worksheet and quiz will let you practice the following skills:

  • Reading comprehension - ensure that you draw the most important information from the related how to calculate formal charge lesson
  • Interpreting information - verify that you can read information regarding how to calculate formal charge and interpret it correctly
  • Knowledge application - use your knowledge to answer questions about how to calculate formal charge

Additional Learning

To learn more about finding the formal charge, review the corresponding lesson Calculating Formal Charge: Definition & Formula. This lesson covers the following objectives:

  • Describe the idea behind the Lewis Structure
  • Identify how to find the formal charge in given problems
  • Know the defining characteristics of a formal charge
  • Learn the particulars of nonbonding electrons
  • Appreciate the particulars of valence electrons
  • Understand the drawing of the molecule showing all the bonding and nonbonding electrons
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