Curated OER
Periodic Trends
Chemists compare the electronegativity, ionization energy, electron affinity, and ionic radius of different elements. This activity is composed of 11 multiple choice questions, and 8 written explanations. Critical thinking skills are...
Curated OER
The Periodic Table
A huge collection of slides introduces chemistry learners to the periodic table of elements, electron configuration, and electronegativity. It opens with the history of today's periodic table, and then details the arrangement. After...
Curated OER
Periodic Trends
Thorough explanations of the trends in the periodic table of elements make up the majority of this handout. Atomic and ionic size, ionization energy, electron affinity, and electronegativity are presented before giving chemistry...
Curated OER
Atomic Electron Configuration and Chemical Periodicity
In this electron configuration and periodicity worksheet, students answer fifteen questions about periodic trends and they analyze orbital diagrams indicating location of electrons.
Curated OER
Periodic Table Trends
In this periodic trends worksheet, students solve ten problems related to elements in the periodic table. Students write electron configurations for atoms and they compare elements and their periodic trends.
CK-12 Foundation
Ck 12: Periodic Trends
[Free Registration/Login may be required to access all resource tools.] In the following online tutorail students will use the Periodic Table to identify and explain periodic trends, including atomic and ionic radii, electronegativity,...
CK-12 Foundation
Ck 12: Trends in the Periodic Table
[Free Registration/Login may be required to access all resource tools.] Students investigate specific properties that can be predicted by an element's position on the periodic table. Additionally, they will look at the formation of ions,...
University of Southern California
Atomic Bonds
This slide show on atomic bonds contains several slides on electron affinity. Other topics include covalent, Sigma and Pi bonds, and atomic bonding in solids.
Simon Fraser University
Chem1 Virtual Textbook: Periodic Trends in Ion Formation
Acting as a subtopic of the General Chemistry Virtual Textbook's section on Atoms and the Periodic Table, this site discusses electron affinity and ionization energy in relation to ion formation. Charts and graphs are included as well.
Ohio State University
Ohio State University: Electron Affinity
This page describes electron affinity and the periodic trends of the elements according to their positions on the periodic table.
CK-12 Foundation
Ck 12: Chemistry: Electron Affinity
[Free Registration/Login may be required to access all resource tools.] Covers the definition of electron affinity and trends in electron affinity.
Web Elements
Web Elements Periodic Table: Electron Affinity
An interactive periodic table. When you hover over an element, its name, atomic number, group, period, and electron affinity value appear.
Other
University of Texas at Dallas: Attractions in Compounds
Explanation of attractive forces and energy changes involved in bonding.
Sophia Learning
Sophia: Periodic Trends: Electron Affinity: Lesson 3
This lesson will explain how the electron affinity changes over representative elements across rows and up and down columns on the periodic table. It is 3 of 3 in the series titled "Periodic Trends: Electron Affinity."
Clackamas Community College
Clackamas Community College: Electron Affinity Definition
A basic explanation and definition of electron affinity.
Davidson College
Davidson College: Plot of First Ionization Energy and Atomic Number
Here you will find a group of images and graphs which plot covalent radii, first ionization energy, and electron affinity vs. atomic number.