- Lithium was discovered by Johann Arfwedson in 1817. From the Greek word lithose (stone).
- It present in trace amount in virtually all rocks.
- Lithium metal is soft enough to be cut with a knife.
- It appears silvery white color that quickly changes to gray due to oxidation.
- Lithium has very low density 0.534gkm.
- Lithium has the highest specific heat of any solid elements.
- Lithium imports a crimson color to flame although the metal itself burn a bright white.
Atomic number - 3
Number of electrons - 2, 1
Electronic configuration - [ Helium ] 2s1
Melting point - 453.69 K
Boiling point - 1615 K
Atomic Weight - 6.941
- Lithium batteries are disposable batteries with lithium or its compound as an anode.
- Lithium stearate is used as a high temperature lumbricant.
- Lithium is used in ceramic, glass, electrical and electronics, lumbricating greases and metallurgy process.
- Lithium compound are used in pyrotechnic colorants and oxidizers in red fire works and flares.
- Lithium is useful in the treatment of bipolar disorders.
- Lithium chloride and lithium bromide are highly hygroscopic, so are used in drying agent.