Lanthanoids & Actinoids: Configuration & Comparison


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What are the two rows below the periodic table called?

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1. Which of the following elements is NOT part of the actinoid series?

2. What is the lanthanoid contraction?

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About This Quiz & Worksheet

Check to see how much you know about lanthanoids and actinoids with this multiple-choice quiz and worksheet. The quiz requires you to recall elements that are part of the actinoid series and answer various other questions about this subject.

Quiz & Worksheet Goals

This quiz will test you on the following:

  • The two rows below the periodic table
  • Which elements are and are not part of the actinoid series
  • What the lanthanoid contraction is and when it occurs
  • An oxidation state of lanthanoid and actinoid elements

Skills Practiced

  • Information recall - access the knowledge you've gained about the what to call the two rows below the periodic table
  • Defining key concepts - ensure that you can accurately define a main phrase, such as 'lanthanoid contraction'
  • Making connections - use what you've learned to make connections between lanthanoid and actinoid elements

Additional Learning

To keep learning about this topic, be sure to review the lesson titled Lanthanoids & Actinoids: Configuration & Comparison. Below are examples of what's reviewed in this lesson:

  • Properties of lanthanoids and their atomic numbers
  • Rare earth elements
  • Overview of shielding electrons from protons