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Worksheet
Curated OER

Charge and Mass Worksheet #1

For Students 9th - 12th
In this charge and mass worksheet, students complete a table by indicating the atomic number, the number of protons, the number of neutrons, the number of electrons and the mass number in given elements and isotopes. They compare...
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Lesson Plan
Curated OER

Making Models of Atoms and Isotopes

For Teachers 7th - 9th
In this models of atoms and isotopes worksheet, students use marshmallow of different colors to represent the protons, neutrons and electrons in an atom. Students make models of the 3 isotopes of hydrogen. They draw a diagram of each and...
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Lesson Plan
Curated OER

The Atom

For Teachers 7th - 10th
In this atom worksheet, students complete a graphic organizer for the structure of the atom. They include the definition of the mass number, the atomic mass, the atomic number, the protons, neutron and electrons.
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Worksheet
Curated OER

Masses of Atoms

For Students 9th - 12th
In this masses of atoms worksheet, students complete a chart of 7 isotopes with their isotope symbol, atomic mass, atomic number, and the number of protons, neutrons and electrons. They calculate the average atomic mass of two elements.
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Organizer
Curated OER

Periodic Table

For Students 6th - 8th
In this periodic table worksheet, students use the periodic table to complete the chart with the given elements. Students fill in the atomic number, atomic mass number, protons, neutrons, and electrons.
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Organizer
Curated OER

Thermochemistry

For Students 8th - 10th
For this thermochemistry worksheet, students indicate whether the given processes are endothermic or exothermic reactions. Students complete the phase change diagram as well as define a given set of vocabulary words. Students calculate...
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Organizer
Curated OER

Electrons, Protons, Neutrons

For Students 7th - 12th
In this atoms worksheet, students complete a graphic organizer by writing in the element symbol, atomic number, mass number, and number of electrons, protons, and neutrons. This worksheet has 1 graphic organizer and 14 short answer...
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Worksheet
Curated OER

Isotopes

For Students 10th - 12th
For this isotopes worksheet, students review mass number, molecular notation, electron attraction, and electron orbits. This worksheet has 5 matching and 5 short answer questions.
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Worksheet
Curated OER

Atoms

For Students 9th - 12th
In this atoms worksheet, high schoolers circle the term in parentheses that makes the 20 statements correct. The statements review the parts of an atom, isotopes, and basic matter principles.
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Worksheet
Curated OER

Atomic Theory, Structure, and Symbols

For Students 10th - Higher Ed
In this atomic theory worksheet, students review the observations that led to the conclusion of the atom having a positively charged nucleus. Students compare atomic number and mass number and explain how the discovery of subatomic...
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Organizer
Curated OER

Calculating the Number of Sub-Atomic Particles in an Atom

For Students 9th - 12th
In this atoms learning exercise, students compare the position, relative charge and relative mass of sub-atomic particles. Students define mass number and atomic number. This learning exercise has 2 graphic organizers and 4 short answer...
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Worksheet
Curated OER

Energy and Atoms

For Students 9th - 12th
For this atoms worksheet, learners review atomic number and mass number of atoms plus what happens when an atom is radioactive. This worksheet has 8 fill in the blank and 9 short answer questions.
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Worksheet
Curated OER

Energy and Atoms

For Students 9th - 12th
In this atoms worksheet, students review atoms, atomic number, and mass number. Students determine what happens when atoms become radioactive. This worksheet has 8 fill in the blank and 9 short answer questions.
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Worksheet
Curated OER

Isotopes and Atomic Mass

For Students 10th - 12th
In this isotopes worksheet, students calculate an average atomic mass of specific elements. This worksheet has 4 problems to solve.
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Organizer
Curated OER

Elements

For Students 10th - 12th
In this elements activity, students determine the atomic number, mass, number, electrons, protons, and neutrons for elements. Students review the electromagnetic spectrum. This activity has 1 graphic organizer and 13 multiple choice...
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Worksheet
Curated OER

Atomic Structure

For Students 10th - 11th
In this atomic structure worksheet, students explain that an atom is made up of protons, neutrons and electrons. Then they explain that the atomic number is equal to the number of protons and the mass number is equal to the number of...
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Worksheet
Curated OER

A Guided Tour of the Periodic Table

For Students 9th - 12th
In this periodic table worksheet, high schoolers 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...
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Worksheet
Curated OER

The Periodic Table of Elements

For Students 7th - 12th
In this elements learning exercise, students fill in a periodic table with the element symbols, mass numbers, and proton numbers of the elements that are missing.
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Worksheet
Curated OER

Atoms, Molecules, and Chemical Bonds

For Students 9th - 12th
In this atoms worksheet, students review the parts of an atom, Bohr diagram, atomic number, mass number, and covalent bonds. This worksheet has 5 drawings and 26 fill in the blank questions.
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Worksheet
Curated OER

Atoms

For Students 10th - 11th
In this neutral atoms activity, students identify various neutral atoms found on the periodic table. They determine the number of protons, neutrons, and electrons for each neutral atom listed on the sheet. Students also identify that Z...
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Worksheet
Curated OER

Atoms

For Students 10th - 11th
In this atoms worksheet, students use their knowledge of the periodic table and of atomic structure to complete the table on atoms. They identify the notation for each and then the atomic number, mass number, the number of protons,...
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Worksheet
Curated OER

Ions

For Students 10th - 11th
For this ion structure worksheet, students complete a table for ions using the notations provided. They must identify and complete the atomic number, mass number, number of protons, number of neutrons, and the number of electrons for...