Periodic Trends in the Periodic Table
Grade 8•45 minutes•Standard 1 Alabama Course of Study
Learning Objective
I can explain how atomic radius, ionization energy, and electronegativity vary across periods and groups in the periodic table.
Practice Questions
This lesson includes 7 practice questions to reinforce learning.
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1. Describe the trend of atomic radius as you move from left to right across a period in the periodic table. Explain why this trend occurs.
2. How does the ionization energy change as you move down a group in the periodic table? Provide a reason for this trend.
3. Compare the electronegativity of sodium (Na) and chlorine (Cl). Which element is more electronegative and why?
...and 4 more questions
Educational Video
Periodic Trends - What they are, how to remember them
chemistNATE