lithium

LITHIUM 1.Lithium 2.symbol is Li 3.Atomic number is 3 4.The most common mass numbers are 3 protons and 4 neutrons 5.The physical state at room tempeture is solid 6.Lithium was thought to exist only in mineral rocks and is named after the Greek word //'lithos'// for 'rock or stone'. It was identified by mineralogist Johan August Arfvedson in 1817 or 1818 in the mineral petalite. Robert Bunsen isolated Lithium in 1855. 7.Uses: Lithium is used in heat transfer applications. 8.Lithuim does not have a biological source, but an effect on the body if swallowed. 9.Lithium was discovered by Johan August Arfvedson. 10.The element was discovered from a mineral source where as the other two sources were found from plant sources. 11.The physical properties of the element are they are like black rocks and they are shiney and they look like they are black dimond rocks. 12.Chemical properties of the element is In many of its properties, lithium exhibits the same characteristics as do the more common alkali metals sodium and potassium; thus, lithium, which floats on water, is highly reactive with it and forms strong hydroxide solutions, 13.One of the common compounds of lithium is lithium fluoride. 14.This does not have any common ions. 15.isotopes: 6Li 7Li



**Sources cited : www.webelements.com/lithium** chemistry.about.com/od/**element**facts/a/**lithium**.htm www.chemicalelements.com/elements/li.html