Curated OER
2007 U.S. National Chemistry Olympiad Local Section Exam
Sixty multiple choice questions cover the entire gamut of chemistry concepts. This is the local section of the U.S. National Chemistry Olympiad, where your chemistry candidates take a shot at entering the national competition. They...
Curated OER
Summary of Periodic Trends
This concise collection of images speaks volumes about the trends in the periodic table of elements. Different versions of the periodic table are displayed demonstrating different trends. Teachers' notes are included to assist your...
Curated OER
What do Atoms Look Like?
In this atoms worksheet, learners complete 58 questions about the atomic radius of atoms, the ionization energy, the valence electrons, metals, non-metals and semi-metals and the families of elements.
Curated OER
What do Atoms Look Like?
In this atom activity, high schoolers complete 60 questions about the trends in atoms such as ionization energy and atomic radius, about valence electrons, about the families of elements, about metals, non-metals and semi-metals, about...
Curated OER
Trends in the Periodic Table
In this trends in the periodic table instructional activity, high schoolers plot the ionization energy vs. atomic number and they plot atomic radius vs. atomic number of the first 20 elements. Students analyze their graphs and answer...
Curated OER
Periodic Table Quiz Review Sheet
In this periodic table worksheet, learners answer 10 questions about electronegativity, the groups of elements, atomic radius trends, electronegativity trends, ionization energy trends and properties of the elements.
Curated OER
What are the Trends in the Periodic Table?
In this periodic trends worksheet, students fill out a portion of a periodic table with the atomic number, the atomic radius, the number of shells and the number of outer shell electrons for each element shown. They answer six questions...
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.
Curated OER
Electron Configuration Worksheet
For this chemistry worksheet, students complete the table for each element by writing the electron configuration of the element and giving the values of the four quantum numbers. They also create an energy level diagram for their element...
Curated OER
Unit 4 - Periodic Table
There are 17 multiple choice questions on this periodic table test. The focus is on properties of the elements by group and period. The exam is not formatted well, making it a little difficult to read. There is also a typographical...
Curated OER
Trends in Physical Properties of Group 2 Elements
In this elements worksheet, students complete 2 graphic organizers by comparing the element symbol and melting point for given elements. Then students plot a graph of their atomic radius against proton number.
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,...
Other
Lenntech: Multilingual Periodic Table
An interactive periodic table of elements. Click an element to view a detailed description. Click the flags at the top to choose your language: English, French, Spanish, Dutch, and German.
Texas Instruments
Texas Instruments: Setting the Trend
In this activity you will - Determine the trend in atomic radius for the periodic table. Determine the trend in first ionization energy for the periodic table. Determine the trend in electronegativity for the periodic table.
Environmental Chemistry
Periodic Table of Elements: Gallium
A very detailed look at the element Gallium, a member of the Boron Group.
Environmental Chemistry
Periodic Table of Elements: Indium
A very detailed look at the element Indium, a member of the Boron Group.
Environmental Chemistry
Periodic Table of Elements: Thallium
A very detailed look at the element Thallium, a member of the Boron Group.
Sophia Learning
Sophia: Periodic Trends: Atomic Radius: Lesson 3
This lesson will explain how the atomic radius 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: Atomic Radius."
Sophia Learning
Sophia: Atomic Radius: Lesson 3
This lesson will define atomic radius. It is 3 of 3 in the series titled "Atomic Radius."
Sophia Learning
Sophia: Periodic Trends: Atomic Radius: Lesson 2
This lesson will explain how the atomic radius changes over representative elements across rows and up and down columns on the periodic table. It is 2 of 3 in the series titled "Periodic Trends: Atomic Radius."
CK-12 Foundation
Ck 12: Chemistry: Periodic Trends: Atomic Radius
[Free Registration/Login may be required to access all resource tools.] Defines atomic radius and explains trends in atomic radius.
Web Elements
Web Elements Periodic Table: Atomic Radius
This Webelements website provides a short but detailed definition of atomic radius. Includes links to other chemistry sites.
CK-12 Foundation
Ck 12: Chemistry: Periodic Trends: Atomic Radius
[Free Registration/Login may be required to access all resource tools.] Defines atomic radius and explains trends in atomic radius.