the lightest metal and the least dense solid element,

With a density of 0.564 g⋅cm−3, lithium is the lightest metal and the least dense solid element.

alkali metal

Lithium Lithium (Li) is an alkali metal with a low Z (atomic number).

an essential component in electric batteries found in cell phones and electric cars

Lithium is an essential component in electric batteries found in cell phones and electric cars, the demand for which is sky-rocketing.

the third-lightest element, and the lightest metal

Lithium is the third-lightest element, and the lightest metal.

metal

Lithium is the most commonly used metal in batteries, and also has important pharmaceutical applications.

the medication used most often to treat bipolar disorder

Lithium is the medication used most often to treat bipolar disorder.

the lightest metal, which occurs in several hard rock types, notably spodumene, and in brines

Lithium is the lightest metal, which occurs in several hard rock types, notably spodumene, and in brines, hence Lithium is often mined in salt lakes, particularly in South America.

mood stabilizer

Lithium is just one mood stabilizer used to treat bipolar disorder.

an alkali metal with the atomic number 3 and the chemical symbol Li

The main difference between cobalt and lithium is that cobalt is a transition metal with the atomic number 27 and the chemical symbol Co, while lithium is an alkali metal with the atomic number 3 and the chemical symbol Li.

an alkali metal that is reactive in the presence of water and oxygen

Lithium is an alkali metal that is reactive in the presence of water and oxygen.

a metal that is commonly used in batteries

Lithium is a metal that is commonly used in batteries, while rubidium is a common element that has a variety of industrial applications such as being used in photocells.

the world’s lightest metal, , used in batteries that power everything from smartphones to electric cars

Lithium is the world’s lightest metal, used in batteries that power everything from smartphones to electric cars, and the Salar de Uyuni holds around 5.4 million tons of the world’s total 11 million.

mineral

Lithium is a mineral that is used frequently in the production of batteries and some medical industries.

one of the most commonly used mood stabilizers, as well as the oldest

Lithium is one of the most commonly used mood stabilizers, as well as the oldest.

nature’s lightest metal (as opposed to a synthesized drug)

Lithium is nature’s lightest metal (as opposed to a synthesized drug), and has brain-dampening effects, although brain-dampening effects's precise mechanism of action remains unknown.

the lightest metal on Earth and an unseen material in most of our electronic devices

Lithium is the lightest metal on Earth and an unseen material in most of our electronic devices.

batteries

Lithium is a key component in the production of batteries used in cell phones and electric vehicles. .

an alkali metal that occurs naturally in some groundwater where that groundwater interacts with lithium-containing minerals or saline water

Lithium is an alkali metal that occurs naturally in some groundwater where that groundwater interacts with lithium-containing minerals or saline water.

the key element in electric batteries that are a predominant feature of ‘green’ energy

Lithium is the key element in electric batteries that are a predominant feature of ‘green’ energy; yet paradoxically the extraction process has damaging consequences to the physical and social environments where the physical and social environments takes place.

the lightest metal with the highest energy density

Lithium, as you know, is the lightest metal with the highest energy density, allowing the highest energy density to supply efficiently the maximum amount of energy storage per kilogram of material.