Lithium is located in the first column in the second row on the periodic table of elements. Its appearance is silvery white with a melting point of 181 degrees Celsius. It is the lightest metal known. Lithium is a highly reactive metal, so it needs to be stored in an inert medium.(i.e. mineral oil, argon, petroleum jelly, etc.)  It has 2 main isotopes, Lithium 6 & 7. Lithium 7 is the most common isotope making up about 92% of all Lithium. Lithium 6 is only about 8% of all Lithium in Earth's crust. When on fire, it burns red. It is also the only alkali metal that can react with atmospheric Nitrogen.

Lithium has many uses. However, its number 1 use is most likely in the manufacture and use of Lithium ion batteries. These rechargeable batteries are so much better for the environment than other types because you can reuse them by just charging them. Another use of Lithium is as a medication. On occasion, Lithium Carbonate (Li2CO3) has been used to treat mood disorders such as bipolar disorder, etc.