Period 2 element two make up all natural occurrence of lithium on Earth, although further isotopes have been synthesized. In ionic compounds, lithium loses an electron to become positively charged, forming the cation Li. Lithium is the first alkali metal in the periodic table, and the first metal of any kind in the periodic table. At standard temperature and pressure, lithium is a soft, silver-white, highly reactive metal. With a density of 0.564 g·cm, lithium is the lightest metal and the least dense solid element. Lithium is one of the few elements synthesized in the Big Bang, making it a primordial element. Lithium
Dense Pack Finally, Dense Pack was perceived by some to be a provocative, if not overtly hostile measure at a time when nuclear warfare seemed to be a distinct possibility. Ultimately, the U.S. House of Representatives rejected using the Dense Pack strategy by a 245–176 vote. The U.S. Air Force reconsidered the use of the Dense Pack strategy in 1986, at least in part to find a way to add 50 additional missiles authorized by Congress only if a "safe" basing strategy could be found. There is no evidence that the Dense Pack strategy was ever implemented. Dense Pack Dense Pack is