Atomic Theory and the Periodic Table
Grade 9Chemistry45 min
Learning Objective
I can predict the properties of an element based on its position in the periodic table and its electron configuration.
Lesson Flow
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The periodic table | Atoms, elements, and the periodic table | High school chemistry | Khan Academy
Khan Academy Organic Chemistry
Practice
7 questions • Short answer
Exit Ticket
“Would you expect potassium (K) to be more or less reactive than sodium (Na)? Explain your reasoning based on their positions in the periodic table. Is bromine (Br) a metal, nonmetal, or metalloid? What state of matter (solid, liquid, or gas) would you expect it to be at room temperature? ”
Teacher Guide
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- Answer keys for all questions
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