Atomic symbol - Li
Atomic weight - 6.941
Atomic number - 3
Electron configuration - 2-1
Oxidation states - +1
State of matter - solid
Light metal
Discovered in 1817 by Johan August
Arfwedson
Boils at 1342 .C, melts at 180.5 .C
Specific heat 0.850
Atomic heat 6.0

Notes:
When heated sufficiently it emits light radiation that's red in color.
Lithium is a good electron source in photoelectric cells and cyclotrons.