What is the lightest metal?

The lightest metal is Lithium, with an atomic number of 3. It has a low density of 0.534 g/cm³ and a low melting point of 180.5°C. Lithium is a soft, silvery-white metal that reacts vigorously with water and also with air. It is highly reactive and can explode when exposed to water.

Lithium is one of the most important metals in industries such as batteries, ceramics, glass, and pharmaceuticals. It is widely used in the production of rechargeable batteries for electronic devices, mobile phones, laptops, and electric cars. It is also used in the manufacture of alloys, heat-resistant ceramics, and other high-performance materials.

Lithium is found in trace amounts in most rocks, soil, and natural waters. The largest producers of lithium are Australia, Chile, and Argentina. In recent years, the demand for lithium has increased due to the growing popularity of electric vehicles and the need for renewable energy storage solutions.