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.

"The Phantom has provided you with a simulated spectroscopy of an Atom! Amuse the Phantom by observing the spectroscope and you'll learn more about the Atom." Observe and review the structure of the 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!

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!

A video and a short quiz on the parts of an atom, the periodic table, and molecules.

Explore how changing the numbers of protons, neutrons, and electrons affect the type of atom.

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.

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.

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.

[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.

This lesson will provide an understanding of the basic chemistry of atoms. It is 3 of 5 in the series titled "Atoms."

This lesson will provide an understanding of the basic chemistry of atoms. It is 4 of 5 in the series titled "Atoms."

This lesson will provide an understanding of the basic chemistry of atoms. It is 5 of 5 in the series titled "Atoms."

Explore the particles that make up atoms: protons, electrons, and electrons.

Identify the basic structure of atoms, the building blocks for all matter.

Students will use bags of beads with known quantities of electrons, neutrons and protons to identify the element that they represent.

Kids learn more about the science of the atom. Electrons, neutrons, and protons make up the smallest bits of matter.

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.

This lesson will illustrate that an atom is mostly empty space and has a positively charged, massive core (containing both protons and neutrons called the nucleus) surrounded by negatively charged electrons. It is 2 of 3 in the series...

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."

This page is an exercise in relating the number of protons, electrons, and neutrons for an atom or monoatomic ion.

[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.

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.

This activity serves as an introduction to chemistry, and can be used to help young scholars draw a two dimensional image of the atom.