Lithium (Li)
Lithium is the lightest metal and the least dense solid element. It is soft enough to cut with a knife.
Properties of Lithium
- Atomic number
- 3
- Category
- Alkali Metal
- Atomic mass
- 6.941 u
- Electron configuration
- [He] 2s¹
- Melting point
- 453.65 K (180.5 °C)
- Boiling point
- 1603 K (1329.85 °C)
- Density
- 0.534 g/cm³
- Electronegativity (Pauling)
- 0.98
- Appearance
- Silvery-white metal
- Discovered by
- Johan August Arfwedson (1817)
Facts about Lithium
- Lithium is so light it can float on water!
- The batteries in phones and laptops use lithium!
- Lithium is soft enough to cut with a butter knife!
- Lithium burns a beautiful crimson red color in a flame!