American Chemical Society
Middle School Chemistry: Protons, Neutrons, and Electrons
Investigate why a charged object is attracted or repelled by another charged object. Explore the concept that the attraction between positive protons and negative electrons holds an atom together.
Science Struck
Science Struck: How to Find Protons, Neutrons and Electrons
Brief explanations of how to determine how many protons, neutrons, and electrons are in an element.
American Chemical Society
Middle School Chemistry: Protons, Neutrons, and Electrons
Explore the particles that make up atoms: protons, electrons, and electrons.
Scholastic
Scholastic: Study Jams! Science: Matter: Atoms: Protons, Neutrons, Electrons
A video and a short quiz on the parts of an atom, the periodic table, and molecules.
Tom Richey
Slide Share: Atomic Structure
Slideshow looking at the history of models of the atom, including those proposed by John Dalton, J.J. Thomson, Ernest Rutherford, Niels Bohr, and James Chadwick. Discusses subatomic particles, including the numbers of protons, neutrons,...
Concord Consortium
Concord Consortium: Atom and Ion Builder
Explore how changing the numbers of protons, neutrons, and electrons affect the type of atom.
University of Colorado
University of Colorado: Ph Et Interactive Simulations: University of Colorado: Build and Atom
Build an atom out of protons, neutrons, and electrons, and see how the element, charge, and mass change. Then play a game to test how the ideas work!
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Build an Atom
Build an atom out of protons, neutrons, and electrons, and see how the element, charge, and mass change. Then play a game to test your ideas!
Utah Education Network
Uen: Atomic Model Construction
Students create models of atoms then compare the various aspects of the atoms including; relative size, charge, positions of subatomic particles, and identity of the atom based on proton, neutron, and electrons with the class.
Sophia Learning
Sophia: Subatomic Particles: The Proton: Lesson 2
This lesson will explain that protons are positively charged particles having a mass of one amu and are found in the nucleus of the atom. It is 2 of 3 in the series titled "Subatomic Particles: The Proton."
Thomas Jefferson National Accelerator Facility
Jefferson Lab: It's Elemental Element Math Game!
Learn how to read the periodic table of elements as you solve these Math questions about the number of protons, neutrons, electrons or nucleons in an atom of an element. You can choose how many questions to answer, and how complex they...
California State University
California State University: Proton, Electron, Neutron
An interesting and useful tool to practice recognition/calculation of atomic number, mass, and number of neutrons, electrons, etc. Can be used with all elements.
Sophia Learning
Sophia: Subatomic Particles: The Electron: Lesson 3
This lesson will explain that electrons are negatively charged particles with negligible mass and are found in pairs in orbitals surrounding the nucleus of an atom. It is 3 of 3 in the series titled "Subatomic Particles: The Electron."
California State University
Csudh Project for Chemistry: Protons, Electrons, and Neutrons
This page is an exercise in relating the number of protons, electrons, and neutrons for an atom or monoatomic ion.
Other
Nuclear Twin: The Discovery of the Proton and Neutron
Trace the history of the discovery of protons and neutrons in this informative site.
Math Science Nucleus
Math/science Nucleus: Electrons and the Hairy Monster
This animation discusses electrons and the properties of electrons in a storybook format featuring hairy monsters, strange rocks, and fun animations.
Concord Consortium
Concord Consortium: How Does an Object Become Charged?
Activity 1 in this module: What is the effect of changing the composition of an atom? Since all atoms contain protons, neutrons, and electrons, what makes one element different from another is examined.
ClassFlow
Class Flow: Element Math
[Free Registration/Login Required] In this flipchart students determine the number of protons, neutrons, and electrons of elements essential to life. They use Activotes to check knowledge gained. Students create a Bohr Model.
Mocomi & Anibrain Digital Technologies
Mocomi: Structure of an Atom
An atom is made of three parts - protons, neutrons, and electrons. Here you can explore these different parts.
Sophia Learning
Sophia: Subatomic Particles: The Neutron: Lesson 2
This lesson will explain that neutrons are particles in the nucleus that have no charge and a mass of one amu. It is 2 of 3 in the series titled "Subatomic Particles: The Neutron."
TeachEngineering
Teach Engineering: Mixtures and Solutions
This unit covers introductory concepts of mixtures and solutions. Students think about how mixtures and solutions, and atoms and molecules can influence new technologies developed by engineers. The first lesson explores the fundamentals...
Nobel Media AB
The Nobel Prize: The Nobel Prize in Physics 1923: Robert Andrews Millikan
This Nobel website on the life and scientific work of Robert A. Millikan includes a biography, images, and internet resources for further reading and research. Also included are the 1923 "Presentation Speech" which praised Millikan's...
Concord Consortium
Concord Consortium: Stem Resources: Atomic Structure
Introduces learners to atomic models of the past and present, focusing on the orbital model and an explanation of its basis. Learners then have the opportunity to "make an atom" and contrast it with an ion, followed by an isotope. The...
PBS
Nova: Atom Builder
Find out if you know enough about atoms to build them. The goal of the activity is to build an atom of a particular element by dragging the correct numbers of neutrons, protons and electrons into the atom.