Lithium

group 1

Lithium

Lithium is an element with symbol Li and atomic number 3. Its name originates from the Greeks. It is a metal, but it is soft. Like all alkali metals, lithium is highly reactive and flammable.
Group 1 Flame Tests
The Elements: Lithium
Lithium - A more violent reaction

About Lithium

  • atomic number: 3
  • mass number: 6.94
  • symbol: Li
  • Belongs to Group I (Alkali Metals) and Period 2
  • Electronic Configuration: [He]2s^1
  • Melting Point: 453.65 K
  • Boiling Point: 1603 K
  • Density: 0.534 g/cm
  • Mohs Hardness: 0.6
  • Discovery: Johan August Arfwedson (1817)
  • Crystal Structure: body-centered cubic