The Atom


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question 1 of 3

An element is defined by the number of:

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1. Particles that are found in the atomic nucleus are:

2. Which of the following has a positive charge and a mass of one amu?

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About This Quiz & Worksheet

This quiz and worksheet will test your knowledge about the basic unit of matter. You will be assessed on what an atom is comprised of and how these properties are applied to elements.

Quiz & Worksheet Goals

Use these assessment tools to assess your knowledge of:

  • Atoms
  • Positive charge
  • Mass
  • Atomic number
  • Elements

Skills Practiced

  • Making connections - understanding the structure of an atom and its properties
  • Defining key concepts - ensure that you can accurately define element and atom
  • Distinguishing differences - compare and contrast topics from the lesson, such as the differences between the particles found in the atomic nucleus
  • Knowledge application - use your knowledge to answer questions about a substance with only one type of atom

Additional Learning

To learn more about atoms, review the accompanying lesson on The Atom. This lesson covers the following objectives:

  • Defining what makes up the atomic nucleus
  • Explaining the properties of subatomic particles
  • Showing how the atomic number relates to elements