Periodic Table > Lithium
Basic Information
Name Lithium
Symbol Li
Atomic Number 3
Atomic Mass 6.941 amu
Melting Point 180.54 °C
Boiling Point 1347.0 °C
Number of Protons/Electrons 3
Number of Neutrons 4
Classification Alkali Metal
Crystal Structure Cubic
Density@293 K 0.53
Color Silvery
Atomic Structure
Number of Energy Levels 2
First Energy Level 2
Second Energy Level 1

Isotopes
Isotope Half Life
Li-6 Stable
Li-7 Stable

Facts
Date of Discovery 1817
Discoverer Johann Arfvedson
Name of Origin From the Greek word lithos (stone)
Uses Batteries, ceramics, lubricants
Obtained From Passing electric charge through melted lithium chloride, spodumeme