3 Li Lithium 6.941 u

Lithium

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Period
2
Group
1
Block
s-block
Phase (STP)
Solid

Lithium is the lightest metal and the least dense solid element. It is widely used in rechargeable batteries and psychiatric medication.

Appearance: Silvery-white

Physical Properties

Atomic Mass 6.941 u
Density 0.534 g/cm³
Melting Point 180.5 °C
Boiling Point 1329.8 °C
Phase at STP Solid
Atomic Radius 167.0 pm

Electronic Properties

Electronegativity 0.98
Ionization Energy 520.2 eV
Electron Affinity 59.6 eV
Valence Electrons 1

Electron Configuration

Configuration [He] 2s¹

Electron Shell Configuration

Lithium electron shell configuration Li 2e⁻ 1e⁻

Position in Periodic Table

Lithium position in the periodic table Li

Discovery

Discovered by: Johan August Arfwedson
Year: 1817

Compounds Containing Lithium

More Alkali Metal

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Frequently Asked Questions

What is Lithium?
Lithium (Li) is a chemical element with atomic number 3. It is a solid at standard temperature and pressure, classified as a alkali metal.
What are the key properties of Lithium?
Lithium has an atomic mass of 6.941 u, density of 0.534 g/cm³, melting point of 180.5°C, boiling point of 1329.8°C.
What is the electron configuration of Lithium?
The electron configuration of Lithium is [He] 2s1. It is in the s-block of the periodic table.
Who discovered Lithium?
Lithium was discovered by Johan August Arfwedson in 1817.
What is the electronegativity of Lithium?
Lithium has an electronegativity of 0.98 on the Pauling scale.