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Average Atomic Mass: Definition & Formula

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Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

Which of the following vary for isotopes of atoms of the same element?

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1. Which of the following indicates the percentage of the natural occurrence of an isotope of an element on the planet?

2. What is the atomic mass of calcium?

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About This Quiz & Worksheet

Test your understanding of average atomic mass and the steps used to calculate it with this quiz/worksheet combo. All of the questions on these resources are multiple-choice.

Quiz & Worksheet Goals

Prepare to answer questions about the following:

  • What varies for isotopes of atoms of the same element
  • What indicates the natural occurrence of an isotope of an element
  • Calculating the average atomic mass

Skills Practiced

These assessments will also offer you an opportunity to practice your skills:

  • Knowledge application - use your knowledge to answer questions about atomic mass
  • Defining key concepts - ensure that you can accurately define main phrases, such as average atomic mass and atomic mass unit
  • Problem solving - use acquired knowledge to find the average atomic mass of an element

Additional Learning

Review the lesson that accompanies these assessments, Average Atomic Mass: Definition & Formula, to learn more. In doing so, you'll complete the following objectives:

  • Calculate the average atomic mass of isotopes
  • Identify average atomic mass on charts and tables
  • Understand how atoms differ in elements
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