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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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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

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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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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Lesson Plan
Virginia Department of Education

Average Atomic Masses

For Teachers 9th - 12th Standards
Facilitate learning by using small objects to teach the principles of atomic mass in your science class. Pupils determine the average mass of varying beans as they perform a series of competitive experiments. They gather data and...
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PPT
Curated OER

Relative Mass Formula, Atomic Formula, and Empirical Formula

For Teachers 9th - 12th
After giving the definitions of the different compound terms and formulas, equations are provided to teach your chemists to calculate different values. Relative formula mass, atomic mass, and empirical mass are shown and explained with...
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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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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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Lesson Plan
Virginia Department of Education

The Modern Model of Atomic Structure

For Teachers 9th - 12th Standards
The difference between atomic mass and atomic number can be confusing for some young chemists. Help your class better understand the concepts by allowing them to sketch an atom on paper and then discuss their experience. Upon completion...
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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

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
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Curated OER

Periodic Table Basics Test

For Students 7th - 12th
The periodic table of elements is a vital tool for all chemistry apprentices and professionals alike. Here is a chance for your beginning chemists to assess their understanding of the periodic table. They list element names, symbols,...
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Lab Resource
Pingry School

Isotopes and Atomic Mass – Determination of the Average Atomic Mass of Pastium

For Students 9th - 12th
Sometimes modeling is the best approach to working with microscopic particles. A lab investigation models a fictional element using pasta. The setup uses three different pasta types to represent three different isotopes. Learners...
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PPT
Curated OER

Atomic Theory

For Teachers 7th - 12th
An extremely thorough presentation walks new chemists through the basics of matter. There really isn't a unifying theme, however So many topics are covered: forces, elements, atomic structure, chemical properties, compounds, quarks,...
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Unit Plan
Columbus City Schools

To Measure its Mass or Volume?

For Teachers 6th Standards
Atoms, elements, and molecules, oh my! Teaching the fundamentals of chemistry to curious sixth graders has never been easier to accomplish. Here is a resource that pulls together everything needed to get them off to a good start,...
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Lesson Plan
Curated OER

Teaching Atomic Structure Using Cooperative Learning

For Teachers 9th - 12th
Individuals in a group of four each take on a different role: atomic number expert, mass number expert, isotope expert, and nuclear atom expert. They teach each other about their area of expertise. As an assessment, a short quiz is...
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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

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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PPT
Curated OER

Molar Mass

For Teachers 9th - 12th
Only three slides comprise this collection. The first defines molecular weight and molar mass. The second lists the molar mass and number of particles in a mole of several substances. The third is a chart depicting a chemical reaction...
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Activity
It's About Time

What Determines and Limits an Atom's Mass?

For Teachers 7th - 12th Standards
Provide learners with the tools to further understand nuclear energy and isotopes. Young chemists investigate the components of an atom's nucleus, use symbols to represent various isotope forms, and use the percent abundance of an atom's...
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Worksheet
Curated OER

Average Atomic Masses Homework

For Students 9th - 12th
In this average atomic masses worksheet, learners solve 3 problems. They find the average atomic mass using data from a mass spectrometer, they find the average atomic mass of an element using isotope information and they explain how a...
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Worksheet
Curated OER

Atomic Notation Worksheet

For Students 10th - Higher Ed
In this atomic notation worksheet, learners fill in a table with the number of protons, neutrons, electrons, mass number and atomic number for particular elements.
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Lesson Plan
Kenan Fellows

Determining the Atomic Mass of Elements in a Compound Using Matrices

For Teachers 9th - 12th Standards
Scholars apply concepts learned in both Algebra II and Chemistry to answer the questions on the provided worksheet. The activity allows for extra practice in both classes and helps connect concepts usually taught in isolation. The...
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Lesson Plan
LABScI

Atomic Structure and the Periodic Table of Elements: The Secret Agent Lab

For Students 9th - 12th
Food always gets attention! Model atomic structure using fruit loops to represent the subatomic particles. After building models, scholars create ionic bonds using their models. Finally, they use these concepts to create a periodic table.

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