ATPT - Periodic Trends (Lesson)

Periodic Trends

Introduction

Periodic Trends, consequential of the arrangement of the periodic table, give chemists a helpful tool to quickly predict the properties of elements. In this lesson we will study trends that are more complex. The understanding of these trends will rely on knowledge of atomic structure from previous lessons.

Bohr Models and Effective Nuclear Charge

In this segment of Chemistry Matters, produced by GPB, the students create their own Bohr models and learn about effective nuclear charge.

Download the note taking guide for Chemistry Matters Unit 3 Segment D. Links to an external site.

Download the key to the questions to consider for Chemistry Matters Unit 3 Segment D. Links to an external site.

In this segment, the students make predictions about electronegativity and atomic radius across periods and columns.

Download the note taking guide for Chemistry Matters Unit 3 Segment E. Links to an external site.

Download the key to the questions to consider for Chemistry Matters Unit 3 Segment E. Links to an external site.

Periodic Table Puzzles

Download Periodic Table Puzzle One Practice. Links to an external site.

Download Periodic Table Puzzle Two Practice. Links to an external site.

Periodic Trends Investigation

These Periodic Trends can be used to predict the properties of elements and how they might interact with one another.

What is the relationship between atomic radius and electronegativity? Atomic radius and electronegativity are inversely related. A atomic radius increases, electronegativity decreases.

Which of the following elements is a metal: K, S, and Si? K

Which of the following elements has the smallest ionization energy: N, P, As? As

Which of the following elements has the greatest electronegativity: Cl, P, Al? Cl

Which of the following elements has the largest atomic radius: Ga, Al, Si? Ga

Use your periodic table to determine which of the following elements has the largest atomic radius: C, N, F, O.  C

Use your periodic table to determine which of the following elements has the largest ionization energy: I, F, Cl, Br. F

Periodic Table Trends Practice

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