Ionization energy (IE): The energy required to remove the outermost electron from an atom or a positive ion in its ground level. ELEMENT. Lightweight lithium-magnesium alloys and tough lithium-aluminum alloys, harder than aluminum alone, have structural applications in the aerospace and other industries. A family tree displaying the names related to the name element "lí (1)" Lithium is chemically active, readily losing one of its three electrons to form compounds containing the Li+ cation. Updates? All metals, softer and less dense. They are very reactive. A number of the lithium compounds have practical applications. The bombardment of lithium-6 with slow neutrons produces helium and tritium (3H); this reaction is a major source of tritium production. https://www.britannica.com/science/lithium-chemical-element, Official Site of Briar Cliff College, Sioux City, Iowa, United States, lithium - Student Encyclopedia (Ages 11 and up). It also is used to produce lithium aluminum hydride (LiAlH4), which quickly reduces aldehydes, ketones, and carboxylic esters to alcohols. Point. Hydrogen (atomic number 1), with the simplest of all atomic structures, has just one electron on principal energy level 1, so, in effect, its valence electron is also a core electron. Identify the elements that belong to each family based on the number of valence electrons. She has taught science courses at the high school, college, and graduate levels. Elements are classified into families because the three main categories of elements (metals, nonmetals, and semimetals) are very broad. A family tree displaying the names related to the name element "lí (2)" Lithium hydride (LiH), a gray crystalline solid produced by the direct combination of its constituent elements at elevated temperatures, is a ready source of hydrogen, instantly liberating that gas upon treatment with water. A family tree displaying the names related to the name element "lì (2)" John Emsley, Nature’s Building Blocks: An A-Z Guide to the Elements, Oxford University Press, New York, 2nd Edition, 2011. The table lists only the first IE in eV units. Look up chemical element names, symbols, atomic masses and other properties, visualize trends, or even test your elements knowledge by playing a periodic table game! macro.CLT. Lithium is the only alkali metal that does not form the anion, Li−, in solution or in the solid state. Thus, lithium, which floats on water, is highly reactive with it and forms strong hydroxide solutions, yielding lithium hydroxide (LiOH) and hydrogen gas. Lithium and its compounds impart a crimson colour to a flame, which is the basis of a test for its presence. Scripts 黎 (Chinese) Meaning & History. The metal itself—which is soft, white, and lustrous—and several of its alloys and compounds are produced on an industrial scale. The periodic table is made up of 118 elements. Lithium is utilized to a considerable extent in organic synthesis, both in laboratory reactions and industrially. The isotopes lithium-8 (half-life 0.855 second) and lithium-9 (half-life 0.17 second) have been produced by nuclear bombardment. To convert to kJ/mol multiply by 96.4869. Source: U.S. Department of the Interior, Mineral Commodity Summaries 2007. Group 1 elements are called "alkali metals". Usage Chinese. The pure lithium formed at the cathode coalesces at the surface of the electrolyte to form a molten pool, which is protected from reaction with air by a thin film of the electrolyte. Beryllium is a chemical element with the symbol Be and atomic number 4. This could also handle LIs within an OL by seeing if the LI's parent is an OL and if so, just return li.value. It's silver-white in pure form and is so soft it can be cut with a butter knife. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. The HTML