9/24/2023 0 Comments E3 atomic heartLithium metal will burn in air and should be stored under kerosene or in an inert atmosphere, like argon. While lithium metal burns in water, it does not do so as vigorously as sodium or potassium. This is because the lithium valence electron is so close to the atomic nucleus. Yet, it is the least reactive metal in its element group. Lithium is the only alkali metal that reacts with nitrogen.It is a coolant in breeder reactors and a source of tritium when atomic number 3 is bombarded with neutrons. It's also used in glass and ceramics and to make high temperature lubricant grease. Among its uses, lithium is used in medications for bipolar disorder, to make lithium ion batteries, and to add a red color to fireworks.However, moist air quickly corrodes the metal, turning it dull gray and finally black. Freshly cut metal is silver-colored, with a metallic luster. Element number 3 is soft enough to cut with shears.Element number 3 has the highest melting point and boiling point of the alkali metals. It also has the highest specific heat capacity of a solid element. It is so light, it can even float on oil. This means it not only floats on water, but is only about half as dense as it. The density of the solid near room temperature is 0.534 g/cm 3. Lithium is the lightest metal and the lightest solid element at ordinary temperature and pressure.
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