Khan Academy
Khan Academy: Bohr's Model of Hydrogen
Resource investigates how Bohr's model of hydrogen explains atomic emission spectra.
Cosmo Learning
Cosmo Learning: Chemistry 1 A: General Chemistry
A collection of video lectures from a general chemistry course taught at the University of California, Berkeley. The course covers topics like stoichiometry, acid-base and solubility equilibrium, oxidation-reduction reactions, chemical...
American Chemical Society
Middle School Chemistry: Represent Bonding With Lewis Dot Diagrams
Learners draw and interpret Lewis dot diagrams for individual atoms and both covalent and ionic compounds.
Annenberg Foundation
Annenberg Learner: Interactives: Periodic Table
Learn the basics of the Periodic Table including how the Periodic Table is organized and how to make sense of the information included in the table. Test your understanding with an interactive quiz at the end of the activity.
Upper Canada District School Board
Tom Stretton's Chemistry Pages: The Nucleus
This online slide show presents the basic ideas behind the structure of the atomic nucleus.
Science Education Resource Center at Carleton College
Serc: Drawing Atoms
This activity serves as an introduction to chemistry, and can be used to help students draw a two dimensional image of the atom.
Other
Web ref.org: Arsenic
Some basic information along with good information on uses and health related facts on arsenic.
CK-12 Foundation
Ck 12: The Nuclear Model of the Atom
[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will distinguish between the three main subatomic particles and understand the contributions of J. J. Thomson, Robert...
Other
Particle Adventure Dutch Version
Dutch version of the well-known "Particle Adventure" physics website that teaches students about atoms, mass, particle physics, and quantum physics. The site discusses theories related to physics and provides other links related to the...
CK-12 Foundation
Ck 12: Physical Science for Middle School
This digital textbook covers core physical science concepts and includes interactive features, real world examples, and videos.
PBS
Pbs: Planck Discovers the Quantum Nature of Energy
PBS offers a short summary of the discovery of the quantum nature of the atom by Max Planck. Easy to follow.
Other
Erik's Chemistry Page: Electronic Structure of Atoms
A description of quantum theory, the Bohr model of the atom, the quantum mechanical atom, the Scrodinger equation, and quantum numbers.
CK-12 Foundation
Ck 12: Orbitals
[Free Registration/Login may be required to access all resource tools.] A collection of learning opportunities about electron orbitals. Includes videos, activities, discussion questions, and quizzes.
Towson University
Towson University: Shapes of Molecules
This chemistry class printout details the main points of molecular geometry and explains bond hybridization and bond angles.
Sophia Learning
Sophia: Elements: Lesson 4
This lesson will explain the arrangement of elements on the periodic table, including the relationships among elements in a given column or row. It is 4 of 4 in the series titled "Elements."
Sophia Learning
Sophia: Elements: Lesson 1
This lesson will explain the arrangement of elements on the periodic table, including the relationships among elements in a given column or row. It is 1 of 4 in the series titled "Elements."
Sophia Learning
Sophia: Elements: Lesson 2
This lesson will explain the arrangement of elements on the periodic table, including the relationships among elements in a given column or row. It is 2 of 4 in the series titled "Elements."
Khan Academy
Khan Academy: Discovery of the Electron and Nucleus
Learn about Thomson's cathode ray experiment and the plum pudding model and Rutherford's gold foil experiment.
Environmental Chemistry
Periodic Table of Elements: Gallium
A very detailed look at the element Gallium, a member of the Boron Group.
Environmental Chemistry
Periodic Table of Elements: Indium
A very detailed look at the element Indium, a member of the Boron Group.
CK-12 Foundation
Ck 12: Physical Science: Atoms
[Free Registration/Login may be required to access all resource tools.] Atoms and how they are related to elements, and the particles that make up atoms.
Khan Academy
Khan Academy: Polyatomic Ions
How to name ionic compounds containing common polyatomic ions.
Khan Academy
Khan Academy: Naming Monatomic Ions and Ionic Compounds
Learn how to name monatomic ions and ionic compounds containing monatomic ions, predict charges for monatomic ions, and understand formulas.