Trends in the Periodic Table
Grade 12•45 minutes
Learning Objective
I can predict and explain periodic trends, including electronegativity, ionization energy, atomic radius, and metallic character, based on electron configuration and nuclear charge.
Practice Questions
This lesson includes 12 practice questions to reinforce learning.
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1. Define atomic radius and explain how it changes as you move down a group and across a period on the periodic table.
2. Explain why ionization energy generally increases across a period.
3. How does the number of valence electrons affect an element's ionization energy? Explain your reasoning.
...and 9 more questions
Educational Video
The Periodic Table: Atomic Radius, Ionization Energy, and Electronegativity
Professor Dave Explains