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
2000 U.S. National Chemistry Olympiad National Exam - Part I
The National Chemistry Olympiad exams are comprehensive tests covering an entire  year of chemistry concepts. You can use them as practice for competing in the challenge, or simply as a review, or as an actual final exam for your general...
Curated OER
Size of Atoms - Trends
This compendious collection of slides leaves no questions when it comes to the concept of atomic size. Thorough and easy-to-read graphs, tables, and graphics explain atomic radii, the shielding effect, the octet rule, isoelectric...
Kenan Fellows
What Element Would You Be?
Primo Levi wrote a collection of short stories comparing his life from Italy to Auschwitz to elements in the periodic table. Pupils read an excerpt from his book and research the characteristics of various elements. Then, they make a...
Science Geek
Periodic Trends
If your pupils think Um is the element of confusion, this presentation on period trends can only help. It covers the patterns for atomic radii, ionization energy, and electronegativity across a period and down a group.Â
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, students 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 worksheet, students 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 the...
Curated OER
Trends in the Periodic Table
In this trends in the periodic table worksheet, students 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 questions about the...
Curated OER
Periodic Table Quiz Review Sheet
In this periodic table worksheet, students 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
Atomic Trend Practice
For this atomic trend worksheet, students answer questions about trends in the periodic table such as ionization energy, atomic radii and electronegativity. They are given tables of elements and ions and they must identify which ones...
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.
Curated OER
Electron Configuration Worksheet
In 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
Properties of the Elements
In this elements worksheet, students compare the properties of elements in the periodic table such as their atomic radii, valence electrons and ionization energy.
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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.