Element+Lithium

Element Lithium by Trung Huynh. Group:1 Period:2

Atomic Mass: 6.941 Atomic Symbol: Li
 * Atomic Number: 3

Electron Configuration:**1s2 2s1
 * **Electrons per Energy Level:** 2,1
 * Number of Electrons (with no charge):** 3
 * **Number of Neutrons (most common/stable nuclide):** 4
 * **Number of Protons:** 3
 * Valence Electrons:**1

Used in batteries, ceramics, glass, lubricants, alloy hardeners, pharmaceuticals, hydrogenating agents, heat transfer liquids, rocket propellants, vitamin A synthesis, nuclear reactor coolant, underwater buoyancy devices and the production of tritium. Deoxidizer in copper and copper alloys.
 * **Discoverer:** Johann A. Arfvedson
 * **Discovery Location:** Stockholm Sweden
 * **Discovery Year:** 1817
 * **Name Origin:**Greek: lithos (stone)
 * Uses of Lithium:**

** Isotopes:  ** Lithium has 7 isotopes whose half-lives are known, with mass numbers 5 to 11. Of these, two are stable: 6Li and 7Li.

Chemical Properties of Lithium

 * **Electrochemical Equivalent:** 0.259g/amp-hr
 * **Electron Work Function:** 2.9eV
 * **Electronegativity:** 0.98 (Pauling); 0.97 (Allrod Rochow)
 * **Heat of Fusion:** 3kJ/mol

Physical Properties of Lithium
> **Thermal:** 0.847 W/cmK
 * **Atomic Mass Average:** 6.941
 * **Boiling Point:** 1615.15K 1342°C 2448°F
 * **Coefficient of lineal thermal expansion/K-1:** 56E-6
 * **Conductivity****Electrical:** 0.108 106/cm
 * **Density:** 0.534g/cc @

Uses: Lithium chloride is one of the most lyproscopic materials known, and it, as well as lithium bromide, is used in air conditioning and industrial drying systems. Lithium stearate is used as an all-purpose and high-temperature lubricant. Other lithium compounds are used in dry cells and storage batteries. Lithium carbide is used for the treatment of bipolar disease and other mental illness conditions. Spodumene, ambylgonite, lepidolite and desert lake brines. Also obtained by passing electric charge through melted lithium chloride. Around 39,000 tons of lithium is produced each year. The primary source of lithium is the USA.
 * Sources of Lithium:**

[] @http://periodic.lanl.gov/default.htm @http://environmentalchemistry.com/yogi/periodic/ @http://webelements.com/__ [] __