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Organizer
Curated OER

Chemistry: Atomic Number and Mass Number

For Students 6th - 12th
All you will find here is a simplistic chart of 17 elements (hydrogen is repeated) for chemistry beginners to fill in. They list atomic number, mass, and the numbers of protons and electrons. There are three critical thinking questions...
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Interactive
Curated OER

All About Circuits ~ Atomic Structure

For Students 10th - Higher Ed
In this interactive Internet  assignment, physical science investigators answer 11 questions about the atom, the subatomic particles, and atomic structure. They can click on "Reveal Answer" to discover if they are correct. They also...
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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

Atomic Musical Chairs

For Teachers 5th - 8th
An engaging activity enlightens young chemists in this lesson plan on atomic structure. They play musical chairs through a series of concentric circles that represent electon orbitals. A laundry basket in the middle holds the protons and...
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Worksheet
Curated OER

Unit 2 ~ Atomic Structure

For Students 9th - 12th
As an atomic structure reference and review tool, this handout fits the bill. The first page provides definitions and tables of orbitals, electrons, and energy levels. The second page is an opportunity to practice determining numbers of...
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Worksheet
Curated OER

The Number of Neutrons

For Students 9th - 12th
Although the focus of this worksheet is the neutron, you cannot talke about them without also dealing with protons and electrons! Chemistry kids fill in a table of 14 elements, identifying the mass, atomic number, isotopic symbol, and...
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Worksheet
Curated OER

Masses of Atoms

For Students 9th - 12th
In this masses of atoms instructional activity, 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...
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Worksheet
Curated OER

Average Atomic Mass

For Students 9th - 12th
Using a chart of student test grades as an example, curious chemists learn how to calculate weighted averages. They apply this knowledge to elements on the periodic table. As practice in calculating average atomic masses, learners...
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Worksheet
Curated OER

WS 3.3 Atomic Weight and Ions

For Students 10th - 12th
For 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.
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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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Worksheet
Curated OER

Atomic Notation Worksheet

For Students 10th - Higher Ed
In this atomic notation worksheet, students fill in a table with the number of protons, neutrons, electrons, mass number and atomic number for particular elements.
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Activity
It's About Time

Atoms and Their Masses

For Teachers 7th - 12th Standards
Are atoms too small to be isolated? Answer this question and more as you provide young chemists with the tools to conduct a hands-on activity demonstrating atomic mass. Pupils explore the mass of copper and aluminum, compare Dalton's...
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Worksheet
Curated OER

Electron Dot Structures, etc.

For Students 9th - 12th
In this electron dot structures handout, new chemists read about electron arrangement and how to draw electron dot diagrams. They complete a chart with the mass number, atomic number, isotope notation, number of neutrons, and Bohr...
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Organizer
Curated OER

Calculating the Number of Sub-Atomic Particles in an Atom

For Students 9th - 12th
In this atoms worksheet, high schoolers compare the position, relative charge and relative mass of sub-atomic particles. Students define mass number and atomic number. This worksheet has 2 graphic organizers and 4 short answer questions.
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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

Atomic Mass of Candium

For Students 8th - 10th
By focusing on "Candium", pupils can work through this guide to learn more about different isotopes.  The teacher will supply M&M's, Skittles and Reeses Pieces to provide data about mass and abundance.
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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
Shelby County Schools

Atomic Structure Worksheet

For Students 7th - 12th Standards
Teaching young scientists about atoms is no small task, but this series of worksheets will make it a little easier. From creating and labeling Bohr models, to identifying information provided in the periodic table of elements, this...
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Worksheet
Curated OER

Atomic Structure and Periodic Table Review

For Students 9th - 12th
In this atomic structure and periodic table worksheet, students complete a table with isotopes, their atomic masses, the number of protons, neutrons and electrons and mass number. They also find the average atomic mass of atoms and...
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Worksheet
Curated OER

Atomic Mass, Moles, and the Periodic Table

For Students 10th - 12th
In this periodic table instructional activity, students review atomic mass, molar mass, and percent composition of compounds. Then students complete 4 problems.
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Worksheet
Curated OER

Typical Numeric Questions for Physics I - Atomic Spectra

For Students 9th - 12th
Seven practice problems are presented to physics pros in this assignment. Given the wavelengths, they perform computations for emission spectra. This brief worksheet makes an appropriate pop quiz.
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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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Worksheet
Curated OER

Practice Final

For Students 9th - 12th
A full-fledged practice final prepares pupils for their general chemistry final exam. If they complete these 57 multiple-choice questions correctly, they will be well-prepared. Note: even though the questions are multiple-choice, there...
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Lesson Plan
Curated OER

Protons, Neutrons, and Electrons

For Teachers 7th - 9th
Using the periodic table of elements, young chemists fill in a chart of isotopes to show the atomic number, mass, charge, number of protons, number of neutrons, and number of electrons. The chart is followed by 11 questions that...

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