Atom Model -- An atom is the smallest particle of an element that contains the chemical properties of that element. Learn about atoms and their components (protons, neutrons, and electrons) in this program.

Periodic Table -- Examine chemical symbols, atomic masses, electronegativity, electron shell configuration, and more in this printable interactive periodic table of the elements. We have all the elements discovered thus far, and instructions on how to read the table.

Using The Periodic Table -- Ever wonder how to actually use the periodic table of elements? Get a detailed overview of the various sections on the periodic table including electron shell configuration, atomic mass, chemical symbols, electronegativity, and more with this tutorial.

Chemical Symbol Lookup Table -- This lookup displays all the elements in the periodic table, sorted by symbol. Also included are the element name, atomic mass, atomic number, and electron configuration. This is a must for anyone learning the periodic table.

Electron Orbitals -- Electron configuration in an atom is organized into orbitals and differently shaped subshells. Learn about the s subshell, p subshell, d subshell, and f subshell (and more) in this interactive tour.

Quantum Numbers -- Quantum numbers describe the state of electrons in an atom. Learn about the principal quantum number, orbital quantum number, magnetic quantum number, and spin quantum number in this interactive tutorial.

Chemical Formula Quiz: Inorganic Compounds -- How well do you know the chemical formulas of inorganic molecules? Bond with this fun quiz -- ten questions randomly selected from our virtual chemistry lab!

Chemical Formula Quiz: Organic Compounds -- How well do you know the chemical formulas of organic molecules? Bond with this fun quiz -- ten questions randomly selected from our apothecary!

Chemical Symbol Quiz -- See how well you remember the chemical symbols with this quiz. At a button-click you get ten more names of elements from the periodic table, each with four choices of chemical symbols for you to choose. Can you get them all?

My Chemical Elements Flashcards -- Learn the symbol, electron shell configuration, atomic mass, and other important details for each chemical element with this interactive flashcard program.

My Chemical Formula Flashcards -- Learn the chemical formulas of organic and inorganic molecules with these flashcards. You can even study while you play a concentration game, too!

My Chemistry Flashcards -- Learn the chemical symbols and other important terms and definitions for chemistry with these flashcards. You can even study while you play a concentration game, too!

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'My Favorites' is a special kind of lens which you can use to bookmark modules and collections. 'My Favorites' can only be seen by you, and collections saved in 'My Favorites' can remember the last module you were on. You need an account to use 'My Favorites'.

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Definition of a lens

Lenses

A lens is a custom view of the content in the repository. You can think of it as a fancy kind of list that will let you see content through the eyes of organizations and people you trust.

What is in a lens?

Lens makers point to materials (modules and collections), creating a guide that includes their own comments and descriptive tags about the content.

Who can create a lens?

Any individual member, a community, or a respected organization.

What are tags?

Tags are descriptors added by lens makers to help label content, attaching a vocabulary that is meaningful in the context of the lens.

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This work is licensed by Rudy Lopes under a Creative Commons Attribution License (CC-BY 2.0), and is an Open Educational Resource.

Last edited by Rudy Lopes on May 10, 2010 1:17 pm -0500.