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Chemistry: Atomic Number and Mass Number
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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The Number of Neutrons
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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Periodic Table Basics Test
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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Average Atomic Mass
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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Unit 2 ~ Atomic Structure
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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All About Circuits ~ Atomic Structure
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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Atomic Musical Chairs
An engaging activity enlightens young chemists in this lesson 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...
It's About Time
Atoms and Their Masses
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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Electron Dot Structures, etc.
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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Atomic Theory, Structure, and Symbols
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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Atomic Notation Worksheet
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.
It's About Time
What Determines and Limits an Atom's Mass?
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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Energy and Atoms
In this atoms activity, students review atomic number and mass number of atoms plus what happens when an atom is radioactive. This activity has 8 fill in the blank and 9 short answer questions.
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Energy and Atoms
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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Nuclear Arithmetic
In "Nuclear Arthmetic," first-time physical scientists examine atomic structure and the periodic table of elements. The are given the formula, "N = A-Z," in which N is the number of neutrons, A is the atomic mass, and Z is the atomic...
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The Atom Board - Making Atoms
In this atom worksheet, chemists learn how to determine the number of protons, neutrons and electrons in an atom using the atomic mass and atomic number. They complete a chart of the subatomic particles and use marbles to represent...
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Chemistry 1 Practice Exam
Thirty multiple-choice questions and their answers are provided in this resource. It was written for a general chemistry course and queries test takers on scientific notation, mixtures, chemical symbols, electric charges, Dalton's atomic...
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Masses of Atoms
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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Charge and Mass Worksheet #1
For 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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The Atoms Family-Atomic Math Challenge
In this atoms worksheet, middle schoolers determine the number of protons, neutrons, electrons, the atomic mass and the atomic number of 16 elements.
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Calculating the Number of Sub-Atomic Particles in an Atom
In this atoms instructional activity, learners compare the position, relative charge and relative mass of sub-atomic particles. Students define mass number and atomic number. This instructional activity has 2 graphic organizers and 4...
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Average Atomic Mass
For this average atomic mass worksheet, students read about how the protons and neutrons make up the atomic mass of an element. They find the average atomic mass given four problems.
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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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Protons, Neutrons, and Electrons
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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