Curated OER
Atoms, Mass and The Mole
In this atoms, mass and the mole worksheet, students are given 18 problems to solve for the number of atoms, the mass of the substance or the moles of the substance. Students show their work and include all the units of measurements.
Curated OER
Atoms, Ions and Formula Basics Make-up Test
Using a copy of the periodic table, chemistry test takers fill in a chart with element name, chemical symbol, atomic number, atomic mass, and numbers of subatomic particles. They define subatomic particles, draw atom models, explain...
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Composition of the Atom
Learners investigate the structure of the atom and its composition. For this atom structure lesson, students find the area of cut out circles and drop pens into the circles. They count the number of marks in the circles and relate their...
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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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Atoms, Molecules and their Names
For this chemistry worksheet, students name the periodic table families and calculate atomic masses of elements to complete 9 questions.
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Atoms and Chemical Bonding
An online resource, this worksheet has your chemistry learners complete four data tables with information about atoms and chemical bonds. The first table addresses atomic number and mass, as well as numbers of protons, neutrons, and...
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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...
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Counting Atoms
In this compounds worksheet, students name the chemical compounds and determine how many atoms of each element are present. This worksheet has 16 fill in the blank questions.
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What do Atoms Look Like?
In this atom worksheet, 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...
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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.
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Moles, Molarity, Grams, and Formula Units
In this atoms worksheet, learners calculate the number of moles, molarity, grams, or formula units for 20 different problems.
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Atoms and Their Interactions
For this atoms worksheet, high schoolers will review the characteristics of elements, atoms, and isotopes. Then students will compare the difference between ionic and covalent bonds. Finally, high schoolers will balance a chemical...
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Atoms, Molecules, and Their Names
For this atoms and molecules worksheet, students use the periodic table to name the different groups and compare the different periods. Students write the names and formulas of ionic and covalent compounds. This worksheet has 5 graphic...
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Balancing Equations
In this balancing equations worksheet, high schoolers balance 8 equations using the proper coefficients. They also write the chemical formulas and balance 8 equations given the reaction in words.
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Mass Spectrometer
In this mass spectrometer worksheet, high schoolers read about how a mass spectrometer determines the elements in gases around Earth. Students answer 3 questions and identify the elements in a graph found by a mass spectrometer.
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Main Group: Properties and Reactivity
In this main group worksheet, students apply their knowledge of the organization of the periodic table to correctly answer 30 multiple choice questions. Students relate information about the properties of the different groups and their...
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WS 3.3 Atomic Weight and Ions
In this atomic weight and ions worksheet, students answer questions about isotopes of atoms and how it relates to atomic weight. They also write out oxidation or reduction reactions for given atoms undergoing loss or gain of electrons.
Virginia Department of Education
Formulas and Percent Compositions of Ionic Compounds
Try not to blind anyone with science by following the safety rules. The lesson encourages scholars to form an ionic compound from magnesium and chlorine. Then they determine the empirical formula and determine the mole ratio and percent...
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Predicting and Naming Polyatomic Ionic Compounds Worksheet
In this compounds worksheet, students write the polyatomic ionic compound formulas or the compound names. This worksheet has 29 problems to solve.
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Natural Resources
For this natural resources worksheet, students compare examples of chemical and physical properties, balance equations, and calculate molar mass and moles. This worksheet has 12 problems to solve and 12 short answer questions.
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Working Out Empirical Formulae
In this chemical compounds worksheet, students learn the steps for determining the empirical formula of a compound and then complete 3 problems.
Balanced Assessment
Solar Elements
Let your brilliance shine like the sun. Future mathematicians and scientists consider given data on the abundance of different elements in the sun. The assessment task requires consideration of how these different abundances relate to...
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Chemistry: Chemical Reactions
Learners investigate chemical reactions. In this chemistry lesson, students burn magnesium and record the mass. Learners list five chemical reactions they see everyday.
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Bonding Basics Review
In this bonding activity, students complete a chart of elements, their symbols, the total number of electrons, the number of valence electrons and the oxidation numbers. They draw Lewis structures for atoms and show the transfer of...