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.
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.
Chem4kids
Chem4 Kids: Atoms
This site provides a detailed overview of atoms. Content explores an atom's structure, as well as what ions are, how atoms bond, what compounds are (including how to name compounds), and what isotopes are.
![Nasa: Atoms and Molecules in Motion, States of Matter [Pdf] Article](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Nasa: Atoms and Molecules in Motion, States of Matter [Pdf] Article")
NASA
Nasa: Atoms and Molecules in Motion, States of Matter [Pdf]
Everythingin the universeis either matter or energy. All matter is made of combinations of about one hundred basic building blocks, the chemical elements on the periodic table. Going a step further and breaking these elements down to...
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!
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.
Science Education Resource Center at Carleton College
Serc: Drawing Atoms
This activity serves as an introduction to chemistry, and can be used to help young scholars draw a two dimensional image of the atom.
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.
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.
Chem4kids
Chem4 Kids: Atoms Are Building Blocks
Identify the basic structure of atoms, the building blocks for all matter.
Utah Education Network
Uen: Atom in a Bag
Learners will use bags of beads with known quantities of electrons, neutrons and protons to identify the element that they represent.
Environmental Chemistry
Environmental chemistry.com: Anatomy of an Atom
Explains the basics of atomic structure, from simple definitions to information about quantum theory. Accurate and helpful basics whether or not you need the more advanced information.
City University of New York
John Jay College of Criminal Justice: Atomic Structure
Resource shows the relationships bewteen terms such as atomic number, protons, and isotopes. Simple pictures of atoms help.
Other
University of Kansas: Quarked!: Matter Mechanic
Build elements and molecules using neutrons, protons, and electrons. Choices include helium, carbon, oxygen, aluminum, water, and salt.
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...
Science4Fun
Science4 Fun: What Is Atom
Fun and interesting illustrated information on atoms including composition, elements, and history.
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.
American Chemical Society
Middle School Chemistry: Protons, Neutrons, and Electrons
Explore the particles that make up atoms: protons, electrons, and electrons.
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.
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.
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.
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.