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Information on matter, atoms, elements, the periodic table, reactions, and biochemistry.
The Photographic Periodic Table
The definitive online periodic table reference site including technical data, and photographs and descriptions of thousands of samples of the chemical elements.
11 Confusing Chemical Symbols
11 Confusing Chemical Symbols Explained - Most of the chemical symbols for elements in the periodic table make perfect sense; there are a small selection, however, that seem to bear no relation to their element’s name.
Visual Elements Periodic Table
The Royal Society of Chemistry's interactive periodic table features history, alchemy, podcasts, videos, and data trends across the periodic table.
Dynamic Periodic Table
Interactive periodic table with dynamic layouts showing names, electrons, oxidation, trend visualization, orbitals, isotopes and more ...
Interactives - The Periodic Table
The periodic table kind of looks like a mess of random letters and numbers, right? Well it's actually one of the most important tools for understanding chemistry!
Democritus (460 BCE 370 BCE) was an ancient Greek philosopher. He is known for his influence on modern science more than any other pre-Socratic philosopher. He was also known as the “Laughing Philosopher", for his tendency to mock fellow citizens for their follies.
Photo of a Single Atom
You might need your glasses for this one. Quantum physicist David Nadlinger from the University of Oxford managed to capture an image that would have been impossible only a few years ago: a single atom suspended in an electric field viewable by the naked eye. The amazing shot titled “Single Atom in an Ion Trap” recently won the overall prize in the UK’s Engineering and Physical Sciences Research Council (EPSRC) science photo and imaging contest.
ABCs of Particle Physics
Take an interactive animated journey through the particle physics alphabet. Inspired by children’s books, we’ve pulled 26 of our favorite particle physics concepts into a short, rhyming collection for folks of all ages. You’ve heard “A is for apple,” but here at Symmetry, A is also for accelerator.
5 of Chemistry's Most Talented ...
Kitchen pranks, bathroom alchemy, and the trick to killing Godzilla. Here are chemistry’s most talented elements.
Materials Science Discovery Channel
Articles, images and videos.
International Union of Pure and Applied Chemistry. The International Union of Pure and Applied Chemistry (IUPAC) serves to advance the worldwide aspects of the chemical sciences and to contribute to the application of chemistry in the service of Humankind. As a scientific, international, non-governmental and objective body, IUPAC can address many global issues involving the chemical sciences.
The Path to the Periodic Table
The path to the periodic table began early in the 19th century, when John Dalton united the atomic theory of matter, which had existed in various forms since antiquity, with the concept of the chemical element, which had emerged in the late 18th century with the work of Antoine-Laurent Lavoisier and his followers.
Lavoisier, a meticulous experimenter, revolutionized chemistry by establishing the law of conservation of mass, determining that combustion and respiration are caused by chemical reactions with what he named "oxygen," and helping systematize chemical nomenclature, among many other accomplishments.
Julius Meyer and Dmitri Mendeleev
For both Julius Meyer and Dmitri Mendeleev, writing a textbook proved to be the impetus for developing the periodic table—a device to present the more than 60 elements known at the time in an intelligible fashion.
iPad App Oresome Elements
Oresome Elements is an interactive game that makes learning about the periodic table, elements and some of their properties and uses fun.
iPad App Periodic Table
This fact-filled, image-rich app is the only periodic table you need. By Royal Society of Chemistry.
iPad App Nova Elements
Did you ever wonder why the periodic table is shaped the way it is, what gives each element its own unique set of properties, or even how elements combine to make everyday objects such as a cup of coffee? With “NOVA Elements,” explore an interactive periodic table, play a game hosted by David Pogue, or watch the two-hour NOVA program, “Hunting the Elements.”