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Lithium

Lithium (Li) is a chemical element belonging to the category Alkali metal, with atomic number 3 and atomic mass 6.9400 u. This sheet describes its fundamental properties, periodic position and physical characteristics.

Identity

  • Name: Lithium
  • Symbol: Li
  • Atomic number: 3
  • Atomic mass: 6.9400 u

Position in the periodic table

  • Group: 1
  • Period: 2
  • Category: Alkali metal

Physico-chemical properties

  • Standard state: Solid
  • Melting point: 180.5°C
  • Boiling point: 1342°C
  • Density: 0.534 g/cm³
  • Electron configuration: 1s² 2s¹

Scientific description

Lithium is a chemical element with symbol Li and atomic number 3. It belongs to the category of Alkali metal and occupies group 1 and period 2. Its standard atomic mass is 6.9400 u.


KODO: G3