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Periodicity of Period 3 Elements
Chemistry · JC 1 · The Periodic Table and Group Chemistry · 2.º Período

Periodicity of Period 3 Elements

Students will examine the variations in atomic radius, ionization energy, and electrical conductivity across Period 3. They will also study the reactions of Period 3 elements with oxygen, chlorine, and water.

MOE Syllabus Outcomes9729 Core Idea 2: Structure and Properties - The Periodic Table9729 Learning Outcome 8(a)-(e)

About This Topic

Students will examine the variations in atomic radius, ionization energy, and electrical conductivity across Period 3. They will also study the reactions of Period 3 elements with oxygen, chlorine, and water.

Key Questions

  1. Why does atomic radius decrease across Period 3?
  2. How do the acid-base properties of Period 3 oxides change across the period?
  3. What explains the variation in melting points among Period 3 elements?

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Edited by Adriana Perusin, Editor-in-Chief, Flip Education