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.
Concord Consortium
Concord Consortium: Atom and Ion Builder
Explore how changing the numbers of protons, neutrons, and electrons affect the type of atom.
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...
CK-12 Foundation
Ck 12: Real Numbers: Adding Electrons
[Free Registration/Login Required] Students explore real numbers through electrons and protons. Click challenge me to answer practice questions and click learn more to complete a learning module on real numbers.
CK-12 Foundation
Ck 12: Chemistry: Protons
[Free Registration/Login may be required to access all resource tools.] Describes research on the proton and the determination of the weight of proton and electron.
Estrella Mountain Community College
Online Biology Book: Chemistry I: Atoms and Molecules
In this online biology textbook, learn about atoms and molecules as they relate to life. Find out about topics such as electrons and energy, chemical bonding, and chemical reactions.
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.
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...
CK-12 Foundation
Ck 12: Structure of the Atom
[Free Registration/Login may be required to access all resource tools.] Students learn about the important discoveries of subatomic particles, and how they led to our current understanding of the atom.
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.
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."
Simon Fraser University
Chem1 Virtual Textbook: Protons and Electron Pairs
Acting as an overview from the General Chemistry Virtual Textbook, this site explores Lewis acids and bases with specific attention directed toward protons and electron-pairs. Other topics covered include proton-transfer reactions...
Utah Education Network
Uen: Atom in a Bag
Students will use bags of beads with known quantities of electrons, neutrons and protons to identify the element that they represent.
Other
Nuclear Twin: The Discovery of the Proton and Neutron
Trace the history of the discovery of protons and neutrons in this informative site.
Exploratorium
Exploratorium: Science Snacks: Remote Control Roller
Investigate the forces of electrons and protons in this experiment with electrostatic charges.
CK-12 Foundation
Ck 12: Plix Series: Resonance: Metallic Bonding
[Free Registration/Login Required] Manipulate the electrons and protons to explore metallic bonding. Then answer a self-correcting concept question.
Quia
Quia: Chemical Bonds (Ionic and Covalent) Quiz
This is 21-question multiple choice quiz over chemical bonds was written for a 7th-grade science class.
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.
PBS
Pbs Learning Media: The Atom
In this interactive activity from ChemThink, students will take a closer look at atomic structure, properties, and behaviors. Includes background reading material and discussion questions.
CK-12 Foundation
Ck 12: Plix: Build Some Helium: Atoms to Molecules
[Free Registration/Login Required] Build your own helium atom and make sure it has the correct number of protons, electrons, and neutrons on this site. Site also includes a small quiz on the topic.
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,...
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."
Science Struck
Science Struck: What Makes Up an Atom?
Describes the structure of an atom and the characteristics of the electrons, neutrons, and protons inside it. Includes some interesting facts about atoms.