Lithium is a chemical ingredient with the symbol Li and infinitesimal number 3. It is a squashy alkali metal with a shade of silver-white color. Under normal conditions, it is the lightest metal and the lesser intense concrete element. Like all alkali metals, lithium metal is very imprudent, corroding rapidly in the presence of moist air to shape a black discolor. For this reason, lithium metal is characteristically stored beneath the cover of oil.
With reference to theory, lithium was one of the little amounts of elements synthesized in the Big Bang, even though its measure has vastly decreased. The reasons for its disappearance and the process by which new lithium is fashioned persist to be significant matters of learning in astronomy. Lithium is the 33rd largest part of the abundant constituent on Earth, but due to its sky-scraping reactivity only appears in nature in the form of compounds. Lithium transpires in a quantity of pegmatite minerals, but is also commonly achieved from brines and clays; on a profit-making scale, lithium metal is secluded electrolytically from a concoction of lithium chloride and potassium chloride.
Mark out amounts of lithium is in attendance in the oceans and in a quantity of organisms, though the constituent serves no noticeable genetic function in humans. On the other hand, the neurological consequence of the lithium metal ion Li+ produces some lithium salts functional as a class of disposition stabilizing drugs.
Lithium and its composites have quite a few other profitable applications, counting heat-resistant glass and ceramics, high strength-to-weight alloys utilized in aircraft, and lithium batteries. Lithium also has significant links to nuclear physics: the parting of lithium atoms was the 1st man-made form of nuclear rejoinder serves as the combination fuel in dramatic thermonuclear weapons.