Curated OER
Laboratory: Modeling Molecular Shapes
In this molecules worksheet, students answer post lab questions about types of bonds, factors that determine polarity and molecular geometry. They calculate electronegativity differences in atoms and determine the types of bonds between...
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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...
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Periodic Table Trends
In this periodic trends learning exercise, 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.
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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...
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Covalent Bonds
After a short introduction, chemistry aces get right into drawing electron dot diagrams for covalent bonds. There are only three questions to answer, so this is not a comprehensive worksheet. It can be used when introducing your class to...
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Periodic Trends
In this periodic trends worksheet, learners determine the trends of electronegativity in the periodic table. Students compare electronegativity and ionization energy. This worksheet has 6 problems to solve.
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Recognizing Polar Molecules
In this polar molecules worksheet, students complete a graphic organizer by writing in the bond type, electron dot diagram, and the type of compound for the chemical compounds given.
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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.
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Chemical Bonding
In this chemical compounds worksheet, high schoolers review the different types of bonding, define the octet rule, and draw Lewis structures (electron-dot diagrams) for given compounds. This worksheet has 7 fill in the blank, 5 short...
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Electronegativity
Students identify the type of bonding between two atoms of elements given their electronegativity values. They study the trend of electronegativity across the periodic table in small groups.