Chemistry of the Drug Lithium
... of the Drug Lithium Lithium is a naturally occurring, readily commercially available alkali metal with atomic number of 3, designated bysymbol Li, and atomic weight of 6.941. This is a silvery
white or gray metal that is solid at 298 K. Looking at the periodic table, lithium is
assigned group number 1 and period number 2. Therefore, it is group 1 (IA) element
containing just a single valence electron (1S22S1).
Lithium, as medically significant, is most commonly available as the carbonate or the
citrate salt. These are used as drugs for various medical conditions, especially psychiatric
disorders. Commercial synthesis of this drug requires addition of an electron to the poorly