The Photographic Periodic Table of the Elements. The Periodic Table of Elements. ChemEd DL Application: Periodic Table Live! Periodic Table Live! Allows you to explore a broad range of information about the elements, their reactions, their properties, their structures, and their histories. Required Components Apple QuickTime is required to view videos on this site.
Suggested Browsers For the best user experience, we recommend one of the following browsers: Acknowledgments Many of the images and the video in Periodic Table Live! The Periodic Table CD was produced with partial support from Images of Chemistry, funded by grant MDR-9154099, National Science Foundation, Directorate for Education and Human Resources and Project CATALYST partially funded with equipment from International Business Machines, Inc. The Periodic Table Videodisc was produced by Project SERAPHIM and funded by grant MDR-8751262, National Science Foundation, Directorate for Science & Engineering Education and Department of Education, FIPSE.
Producers: A. Post Production: KLRU-TV, Austin, Texas On-line Editor: Dan Martaus Producer: Jerrold J. Periodic Table of Elements and Chemistry. Elements & Periodic Table. Now we're getting to the heart and soul of the way the Universe works. You know that a generic atom has some protons and neutrons in the nucleus and some electrons zipping around in orbitals. When those pieces start combining in specific numbers, you can build atoms with recognizable traits.
If you have eight protons, neutrons and electrons, you will have an oxygen (O) atom. If you have seven protons, neutrons, and electrons, you will have a nitrogen (N) atom. Remember that 'atom' is the general term. As far as we know, there are a limited number of basic elements. With the tools you learn here, you can explore and understand the Universe. Since the launch of the site, we've been asked, "Why start with 18? " (1) Electrons fit nicely into three orbitals. As we move past the first eighteen elements, you can start to learn about transition elements in the fourth period (row) of the periodic table. Interactive Periodic Table of the Elements, in Pictures and Words.
An Interactive Periodic Table of the Elements. Periodic Table – Royal Society of Chemistry. Interactives . The Periodic Table . Intro. Interactive Periodic Table of the Elements, in Pictures and Words. Real-life periodic tables bring elements to life. Conjure up an image of the periodic table and you probably see a series of stacked squares filled with letters and numbers. First developed by the Russian chemist Dmitri Mendeleev, the periodic table is an orderly system of classifying the chemical elements that make up literally everything on this planet.
But the printed, simple table makes it hard to imagine the heart and soul behind each of the elements. Some museums and universities are hoping to change that image of the periodic table by creating three-dimensional displays that bring each element to life. One such display, pictured above, made headlines after it was posted on Reddit.
The image shows the display at the University of Iowa's chemistry department. It's similar to those found in the chemistry buildings at the University of North Texas, the University of Oregon, California Polytechnic State University, the University of Minnesota and Texas A&M University. Related on MNN: How 29 Long-Ignored Elements Could Make or Break the Clean-Energy Revolution. In December 2006, William Tahil, an energy analyst, published a paper online titled "The Trouble with Lithium. " His argument would be alarming to the many people who had placed their hopes for a cleaner, more prosperous economy on the rapid development of electric cars powered by lithium-ion batteries.
The trouble, he proposed, was that the world didn't contain enough economically recoverable lithium to support such a switch. Moreover, the viable pockets of lithium that did exist were concentrated in just a few countries. "If the world was to swap oil for Li-Ion based battery propulsion," he wrote, "South America would become the new Middle East. Bolivia would become far more of a focus of world attention than Saudi Arabia ever was. The USA would again become dependent on external sources of supply of a critical strategic mineral while China--home to significant lithium deposits--"would have a certain degree of self sufficiency. " Enlarge Reuters/David Becker (United States) 10 Uses for Mostly Useless Chemical Elements. What Rare Earths Are Locked in Your Cell Phone?
Every time I see a commercial for a new cell phone, I feel a bit nauseous. I love a new cell phone just like the next person, but because of my training as a materials scientist, I feel like a worker in a sausage factory. Cell phones, like sausages, may be great, but you don’t really want to know what it takes to make them. Our lust for new devices isn’t sustainable, at least not yet. Some of the key materials used to make them, mainly rare earth elements, are in tight supply, in part because the primary source of rare earths are mines in one country, China. About 97% of rare earths come from China, which has become increasingly protective of its bounty. Headphones rely on magnets, often made of neodymium, to produce lots of sound from a small enclosure. Rare earth elements are peppered throughout your phone, from the glass display, making it harder, to magnets in speakers, headphones, and vibrating motors, making them more powerful despite their small size.
Digging Deeper Sea Change. 10 elements crucial to modern life that you've probably never heard of. We live in a complicated world. Our lives are driven by unfathomably complex systems that overlap in a cacophony of technology to deliver us our cellular service, Internet, groceries, health care, transportation, consumer goods, music, TV, movies and everything in between. One of the results of our headlong rush into a technologically augmented world is a veritable mountain of equipment. Our cultural relics are now iPads and iPhones, Androids and laptops, each made up of thousands of components, each component potentially made up of thousands of sub-components themselves. All of these technological building blocks are constructed using a palette of component materials that span the periodic table.
Many of the elements found on our list are categorized as “rare earth elements,” a designation that describes 17 elements that are typically found in the same kind of ore and that exhibit similar chemical properties. Photo: Wikipedia Gallium What it’s used in? Where it’s found? How rare is it? Stampede Creek and the Legacy of Mining: Antimony in Stream Water and Sediment (U.S. National Park Service) Gold may have drawn miners to “them, thar” Kantishna Hills in the early 1900s, but the notoriety of the Kantishna Hills Mining District also extended to antimony lode deposits. Over half of Alaska’s antimony production from the 1940s and 1950s came from this region, and the Stampede Mine (now within Denali National Park and Preserve) is Alaska’s historically largest antimony producer. What is antimony? Antimony is an element with the symbol Sb (stibium is Latin for “mark” and antimony has been used in products such as paint that leave a mark).
Antimony can take on a variety of oxidation states (chemical forms), most commonly Sb(III) and Sb(V). Each form has different reactive properties that directly affect how Sb combines with other elements, as well as its likelihood to be transported downstream via water or stream sediment. Weathering effects on exposed ore The chemistry of antimony and its weathering products is complex. Research study of Stampede Mine area Research findings. Four New Elements Added To The Periodic Table. Enlarge The periodic table of the elements Scientists just filled in a few gaps in the periodic table of elements. Elements with atomic numbers 113, 115, 117, and 118 have been added to the periodic table.
The new elements were added after the International Union of Pure and Applied Chemistry (IUPAC) reviewed scientific studies published by teams of researchers in the United States, Japan, and Russia. These elements are among the heaviest in the periodic table and aren’t known to exist outside the lab. These elements, which complete the seventh row of the periodic table, are the first to be added since 2011, when flerovium (element 114) and livermorium (element 116), also superheavy metals, were added. Element 113, which was discovered by Japanese researchers, will become the first element to be named in Asia, according to The Guardian. Phytomining: Harvesting Germanium May Provide a New Source of this Metal - Advancing Mining.
What do sunflowers, corn, and cell phones have in common? The element Germanium (Ge). This semi-metallic element is widely used in semiconductors incorporated into computers, cell phones, and fiber optic cables. Germanium is also used in smart steering systems and parking sensors because it is transparent in infra-red light. And soon it may be sourced from sunflowers, corn, and other crops.
Germanium is abundant but difficult to mine. Most germanium is recovered as a byproduct of zinc ore (sphalerite) processing, and occasionally from silver, lead, and copper ores. Like rare earth elements (REEs), most germanium is exported from China, and demand for it is expected to grow. According to the Reuters article, Smart phone ingredient found in plant extracts, certain crops, including sunflowers, corn, reed canary grass, are able to absorb germanium from the soil.
Apple cracks down further on cobalt supplier in Congo as child labor persists. A boy carries a bag used to transport cobalt-laden dirt and rock at a mineral market outside Kolwezi, Congo, on June 7. A Washington Post investigation found that child labor and unsafe working conditions are part of the cobalt mining process. (Michael Robinson Chavez/The Washington Post) Apple said it has temporarily stopped buying cobalt mined by hand in Congo while it continues to deal with problems with child labor and harsh work conditions. A Washington Post investigation last year detailed abuses in Congo’s artisanal cobalt supply chain, showing how miners — including children — labored in hazardous, even deadly, conditions. The Post connected this troubling trade to Zhejiang Huayou Cobalt Company, a Chinese firm that is the largest buyer of artisanal cobalt in Congo and whose minerals are used in Apple products. Last year, Apple pledged to clean up its cobalt supply chain, but the technology giant said it wanted to avoid hurting the Congolese miners by cutting them off.
Business. Is your cell phone powered by child labor? - Jan. 18, 2016. Major tech companies could be buying electronic components made from minerals mined by children, according to a report from Amnesty International that was published Monday. Researchers of the report found that dozens of firms, including Apple (AAPL, Tech30), Microsoft (MSFT, Tech30), and Samsung, may have links to at least one company which sources its cobalt supply to "artisanal" or subsistence mines in the Democratic Republic of Congo. Cobalt is a key element used in lithium-ion batteries. Most consumer devices -- from smartphones and laptops, to self-balancing scooters and Tesla's home battery -- use this kind of power source. The DRC supplies much of the world's cobalt. "We found that traders are buying cobalt without asking questions about how and where it was mined," Emmanuel Umpula said in a statement on Monday.
Umpula is executive director of African Resources Watch, an NGO that worked with Amnesty International on the report. "I sold to [merchants] who have scales. Log In - New York Times. 4 New Elements Are Added To The Periodic Table. An artist's illustration shows element 117, which has now been officially added to the periodic table of the elements. Kwei-Yu Chu/LLNL hide caption toggle caption Kwei-Yu Chu/LLNL An artist's illustration shows element 117, which has now been officially added to the periodic table of the elements.
For now, they're known by working names, like ununseptium and ununtrium — two of the four new chemical elements whose discovery has been officially verified. With the discoveries now confirmed, "The 7th period of the periodic table of elements is complete," according to the IUPAC. The elements were discovered in recent years by researchers in Japan, Russia and the United States. Three other elements were discovered by a collaborative effort among the Joint Institute for Nuclear Research in Dubna, Russia, the Lawrence Livermore National Laboratory in California. The new elements' existence was confirmed by further experiments that reproduced them — however briefly. California will begin testing horses for cobalt. Email The California Horse Racing Board will begin testing for levels of cobalt in post-race urine and blood samples from racehorses in an attempt to determine whether rumors surrounding the administration of the naturally occurring element are true.
Though no penalties will be issued under the new testing program, the CHRB said in a notice released late Tuesday that a finding of cobalt in a concentration above certain levels in the blood and urine of a horse will “trigger an investigation to determine the source of the cobalt.” The CHRB will also launch a similar investigation for the horses in its necropsy program who exhibit the highest 10 percent of cobalt levels. Dr. Rick Arthur, the equine medical director of the CHRB, said in an interview that rumors surrounding the administration of cobalt salts – a water soluble substance that can be administered either orally or through an injection – have intensified over the past several months. Related: Deluded trainers using diluted drugs. Let's take better care of our rare earth elements.
By Mike Pitts Despite their name, rare earth elements are not especially rare. So how come we are so worried about them running out? THE periodic table is a thing of beauty, yet we seem to be quite happy to exhaust parts of it before we’ve fully realised its potential. Helium will probably run out within the next 100 years. Gallium and indium are running low. The latest part of the table to arouse such fears is a block of 17 metals known as the “rare earth elements”. Both the US and European Union have set up initiatives to look at these strategically important metals. Advertisement The rare earth elements – or as chemists call them, the lanthanides plus scandium and yttrium – might not be household names, but they are common in every household. Without lightweight magnets made from alloys of rare earth elements, computer hard-drives and iPod headphones and speakers would be impossible.
Rare earth elements are also expected to play a big part in the future. The One Swedish Mine That Gave us Seven Chemical Elements. One of the most unheralded sites of scientific discovery in history is a rock quarry on the outskirts of the small Swedish village Ytterby. The site opened in the 1700s to feed European porcelain fads, but soon reports began to circulate of strange materials coming forth from the Earth. The mine ended up being the site of discovery of seven new elements, four of which are named after the town. Tom Scott went to visit it. Advertisement - Continue Reading Below Johan Gadolin was sent here in 1792, where he eventually discovered the first rare earth metal, yttrium, through his friend Carl Axel Arrhenius. A follower of the concurrent French Revolution, Arrehenius idealized French chemist Antonie Lavoisier, who had a few years earlier in 1789 put forward the basic theory that elements existed. Inspired by Lavoisier's ideas, Arrehein was puzzled by the discovery at Ytterby and sent a rock to Gadolin.
He called his discovery yttrium in honor of where it was discovered. Ed and Periodic Videos. Khanacademy.