Curated OER
Periodic Table
In this periodic table and elements learning exercise, students review valence electrons, octet rule, oxidation number, and the difference between metals and non-metals on the periodic table. This learning exercise has 5 matching, 20...
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Molecular Models
In this molecule worksheet, students use a molecular model kit to build the molecule, draw a three-dimensional structure, and describe its shape. This worksheet has 2 graphic organizers.
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Oxidation/Reduction Reactions
In this chemical reactions worksheet, students review the oxidation number rules and then assign oxidation numbers to atoms in given compounds. Students identify the reducing agent and the oxidizing agent in reactions. Students practice...
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IPC Chemistry Review
In this chemistry review worksheet, students classify and name compounds, calculate atomic mass, draw Lewis Dot Diagrams, and determine number of protons for atoms. This worksheet has 37 fill in the blank, 38 matching, and 3 short answer...
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Bhopal - Covalent Bonding
Using the chemicals that leaked in the Bhopal gas tragedy of 1984, chemists examine covalent bonds. Provide for them the chemical reactions and have them draw Lewis diagrams for the molecules involved. That's about all there is to the...
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Atom Basics Test
Simple in format and standard in content, this resource is an assessment of your beginning chemists' grasp of the atom. Using a periodic table of elements, they fill in a chart of missing chemical formulas, atomic masses, and numbers of...
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Periodic Table And Its Trends - Day 4
Guide your chemistry class through the periodic table so that they are able to identify atomic radii, electronegativity, and ionization energy. Give them three metals to place in water to observe reactivity. Teach them to write electron...
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Balancing Chemical Reactions 2
In this balancing chemical reactions worksheet, students balance equations, identify electrons gained or lost in atoms and identify the number of atoms of each element for the reactants and products in equations. They also answer 3...
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Properties of the Elements
In this elements instructional activity, students compare the properties of elements in the periodic table such as their atomic radii, valence electrons and ionization energy.
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Electron Structure of the Atom
In this atoms worksheet, students determine the energy difference between levels and draw diagrams of the different types of orbitals. Students determine the ground state electron configuration for given elements. This worksheet has 14...
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Elements
In this elements worksheet, students write the complete electronic configuration and the number of valence electrons for elements. Students classify elements based on their electronic configuration. This worksheet has 5 problems to solve.
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Review for Chemistry
In this review for chemistry worksheet, students decide if given statements are true or false. Students relate information learned about introductory knowledge gained in chemistry to accurately answer the given questions.
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Biochemistry Assignment
In this biochemistry instructional activity, students complete a table by filling in the missing information about different elements. Students draw the Bohr diagram and the Lewis dot diagram for several atoms.
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Lewis Structures
In this Lewis structures worksheet, students identify and describe what Lewis structures or dot diagrams are and how they illustrate the valence electrons in an outer shell. Then they use a periodic table to determine the numbers of...
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Bonding Basics - Covalent Bonds
In this chemistry worksheet, students complete the chart for each of the given elements by naming the number of protons, electrons, Valence electrons, and the electrons used to fill the outer shell. Then they complete each covalent bond...
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Bonding Basics - Ionic Bonds
In this chemistry worksheet, students complete the chart for each of the listed elements, including the number of protons, electrons, and valence electrons. Then they complete each of the ionic bonds that follows.
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Chapter 7 Vocabulary
In this online vocabulary worksheet, students match 14 definitions to the correct vocabulary term. Students may click the solution button to check answers.
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Oxidation Numbers
In this oxidation numbers instructional activity, learners determine the oxidation number for given elements and draw Lewis Dot Diagrams. This instructional activity has 6 fill in the blank and 11 short answer questions.
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Metals and Nonmetals
In this elements worksheet, students determine if the given elements are metals or nonmetals. Students give the valence electrons for other elements. This worksheet has 10 fill in the blank questions.
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A Guided Tour of the Periodic Table
In this periodic table activity, students write the chemical symbols for the given elements, compare atomic number and mass number, and describe the importance of valence electrons in the organization of the periodic table. This activity...
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Creating Bonds
For this creating bonds worksheet, students create 2-D and 3-D models of the molecular formula provided. Students complete a chart of information about the molecular formula given.
Vision Learning
Visionlearning: Reactions and Changes: Chemical Reactions
Explanation of Noble gases and of how atoms attempt to fill their outermost valence shells for stability.
Other
Organic Chemistry: Lewis/kekule Structures
This slide presentation contains a few slides that will be useful for students learning to write Lewis structures. A discussion of multiple bonds is included, and clear examples are shown.
CK-12 Foundation
Ck 12: Electron Arrangement in Atoms
[Free Registration/Login may be required to access all resource tools.] In the following online tutorail students will learn how to express the arrangement of electrons in atoms through electron configurations and Lewis valence electron...