Periodic Table of Elements Elements Database. Periodic Table. Our periodic table of chemical elements presents complete information on the chemical elements including the chemical element symbol, atomic number, atomic weight and description. The links below lead to the detailed description of most well known chemical elements. Chem4Kids. com This tutorial introduces basics of elements and their organization. Other sections include matter, elements, reactions, and biochemistry. Download the full version of 4 Elements FREE Play the full version with more features, more levels and better graphics Download Free Trial or Buy Now Just 6. Elements for iPad, iPhone, Android, Mac PC The survival of an ancient kingdom has been threatened. Restore the four elements with help from an adorable fairy in. Interactive periodic table. Clicking on an element brings up a list of general properties and data, and information on its discovery, history, uses, geologic. An HTML element is an individual component of an HTML document or web page, once this has been parsed into the Document Object Model. HTML is composed of a tree of. Our periodic table information can be useful for chemistry and physics students, as well as science researchers. You can test your Periodic Table knowledge with our Periodic Table Quiz. Dynamic Periodic Table. Origins of the Periodic Table of Elements. The Periodic Table displays all known chemical elements which are grouped by chemical properties and atomic structure. Copper, silver, gold, mercury, tin, lead, and other elements have been known since ancient times and were used to make jewelry, coins, and tools. Phosphorus became the first element to be discovered by Hennig Brand in 1. A chemical element is a species of atoms having the same number of protons in their atomic nuclei that is, the same atomic number, or Z. Element For' title='4 Element For' />It is known as the first scientific discovery of a chemical element. Early Systematization Attempts. A total of 6. 3 elements have been discovered by 1. However, the first attempts at systematization occurred in 1. Johan Dobereiner grouped chemical elements into triads, and De Chancourtois formulated a chart with closely related elements. Mendeleevs Periodic Table. It was only in 1. Dmitri Mendeleev, an inventor and chemist of Russian origin, discovered the Periodic Law and organized all chemical elements in columns and rows. The elements were organized based on their physical and chemical properties. The Extended Periodic Table. It is still to be discovered how far the Periodic Table of Elements extends. Virtual Walkie Talkie Pro there. According to the American scientist Glenn Seaborg, element 1. Attempts were made to synthesize several new elements, including unbiseptium, unbihexium, unbiquadium, and unbibium. Periodic Table Grouping. The Periodic Table includes 1. The so called typical elements are found in the first two rows. Groups. Group 1 of the Periodic Table groups together the alkali metals while group 2 contains all alkaline earth metals. The noble gases and halogens are in groups 1. The Periodic Table groups elements into the cobalt, chromium, vanadium, scandium, copper, cobalt, and other groups. Periods. There are 7 periods of elements that group elements with similar properties. Castcredits plus additional information about the film. Heil Hc 4 Element For Sale' title='Heil Hc 4 Element For Sale' />Period 1 contains two elements, helium and hydrogen while period 7 contains radioactive elements. The rare earth elements are found in period 6. Many period 6 elements are toxic, heavy, and radioactive. Blocks. Blocks combine adjacent groups and are also called element families. There are 4 blocks in the Periodic Table f, d, p, and s. N.976479830_mtlu.jpg' alt='4 Element For' title='4 Element For' />The f block includes inner transition elements and the d block is made of transition elements. The p block includes post transition metals, semimetals, and nonmetals, with the exception of helium and hydrogen. The s block contains alkaline earths and alkali metals. Major Categories. The major categories are metalloids, nonmetals, and metals, and most elements in the Periodic Table are metals. Metals are malleable, shiny, and ductile while nonmetals lack metallic properties and are volatile. Metalloids share properties with both nonmetals and metals. Periodic Table Curious Facts. The Most Expensive Element. Lutetium is a metal and the most expensive chemical element available. The price of 1 gram is 1. Francium, however, is the most expensive element that can be produced. A small amount will cost a few billion. The Lightest and Heaviest Element Hydrogen is the lightest element, and it is also the most abundant one. Hydrogen has important commercial applications, for example, hydrogen fuel cells and the manufacture of chemical products. Uranium is the heaviest element that occurs freely in nature. Ununoctium is heavier and the heaviest known chemical element, but it is manmade. The Rarest Element. The rarest element is astatine, and scientists estimate that the total amount found is less than 1 gram. CERN researchers suggest that its isotopes can be used in cancer treatment therapies. Precious Metals. The group of precious metals includes elements such as palladium, ruthenium, platinum, iridium, and gold. Other precious metals include osmium, ruthenium, silver, and rhodium. They are used for coinage, jewelry, and alloys and have different commercial applications. Software Planning Tool For Wimax Networks. Artificially Made Elements. Some elements are not found in nature but are synthesized in laboratory settings. They are also called synthetic elements and have radioactive properties. Fermium and einsteinium are the first artificially made elements which were discovered in 1. Today, there are 2. The Most Abundant Element in the Universe. About 7. 5 percent of the mass of the universe consists of hydrogen, making it the most abundant element. It is a colorless and odorless gas that makes up nuclear matter. The second most abundant is helium, which accounts for about 2. Other elements include oxygen, iron, neon, magnesium, carbon, and nitrogen. How Many Radioactive Elements There are 3. Escort Agency Business Plan'>Escort Agency Business Plan. Periodic Table. Many radioactive isotopes have been isolated as well. The list of radioactive elements includes berkelium, radon, polonium, californium, thorium, and others. What is the Most Radioactive Element Polonium, which is classified as a metal and metalloid, is the most radioactive element that has no stable isotopes. It occurs naturally in very low concentrations. Lawrencium and nobelium are also highly radioactive elements. Most dense Least dense Osmium is the densest known chemical element with density of 2. Other elements with high density include platinum, rhenium, gold, thallium, berkelium, and americium. The least dense element is hydrogen while lithium is the least dense solid metal. Chemistry doesnt have to be boring. Learn more about the The Chemistry of Teeth Whitening. If you are wondering what does have chemistry to do with money then read The Chemistry of Paper Money, The Chemistry of Polymer Banknotes and The Chemistry of Credit Cards. Learn why precious metals are so special. Learn more about banking, money and financial matters at Canadian Banks. If you wondered what does glycemic index mean, what are carbohydrates simple carbs and complex carbs, how does a low carb diet work, and can you drink sugar alcohols you have come to the right place. Tweet. Copyright Elements. Database. com 2. 01. All rights reserved. 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