Royal Society of Chemistry
Royal Society of Chemistry: Gridlocks: Level 2
A collection of grid puzzles that cover a wide variety of topics in intermediate high school chemistry. These are excellent for topic review and reinforcement. The puzzles can be played online and also downloaded as worksheets. Answers...
Texas Education Agency
Texas Gateway: Matter and Energy: Atomic Structure
This tutorial reviews over the basics of atomic structure.
OpenStax
Open Stax: Elements and Atoms, the Building Blocks of Matter
This site provides an overview of elements and atoms, the building blocks of matter.
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...
Other
University of Kansas: Quarked!: Ushi's Ruler Game
See how many times a paper ruler must be cut in half before it reaches the size of a quark.
Nobel Media AB
The Nobel Prize: Luis Alvarez Biographical
A biography of Luis Alvarez, a California native, who was awarded the 1968 Pulitzer Prize in Physics for his work with subatomic particles.
BBC
Bbc: Gcse Bitesize: Atomic Structure
This lesson focuses on the structure of atoms. All substances are made from atoms. Each atom is made of a nucleus - containing protons and neutrons - surrounded by electrons. It provides a link to an assessment.
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.
Wikimedia
Wikipedia: Electron
At this Wikipedia site, properties and characteristics of electrons are discussed in this brief overview of them.