#3
Lithium
alkali metal· Solid·6.94 u
Lithium (from Greek:λίθος lithos, "stone") is a chemical element with the symbol Li and atomic number 3. It is a soft, silver-white metal belonging to the alkali metal group of chemical elements. Under standard conditions it is the lightest metal and the least dense solid element.
Read on Wikipedia
Identity
- Symbol
- Li
- Atomic Number
- 3
- Atomic Mass
- 6.94 u
- Category
- alkali metal
- Block
- s-block
- Period
- 2
- Group
- 1
- Appearance
- silvery-white
- Year Discovered
- 1817 CE
- Discovered By
- Johan August Arfwedson
- Named By
- stone
Electrons
- Configuration
- [He] 2s1
- Full Configuration
- 1s2 2s1
- Shells
- 2, 1
- Electronegativity
- 0.98
- Electron Affinity
- 59.6326
- Oxidation States
- +1
- Ionization Energies
- 520.2, 7298.1, 11815
Physical Properties
- State at
- Solid
- Melting Point
- 453.65
- Boiling Point
- 1603
- Density
- 0.534
- Molar Heat
- 24.86 J/(mol·K)
- Crystal Structure
- BCC
- Magnetic Ordering
- Paramagnetic
Mechanical
- Atomic Radius
- 167 pm
- Covalent Radius
- 133 pm
- Van der Waals
- 182 pm
- Metallic Radius
- 152 pm
- Mohs Hardness
- 0.6
- Brinell Hardness
- 5 MPa MPa
- Bulk Modulus
- 11 GPa GPa
- Shear Modulus
- 4.2 GPa GPa
- Young's Modulus
- 4.9 GPa GPa
Thermal & Electrical
- Thermal Conductivity
- 84.8 W/(m K) W/(m·K)
- Electrical Conductivity
- 10.8 MS/m S/m
- Specific Heat
- 3582 J/(kg K) J/(g·K)
- Heat of Vaporization
- 136 kJ/mol kJ/mol
- Heat of Fusion
- 3 kJ/mol kJ/mol
Abundance
- Universe
- 6.00 ppb
- Sun
- 6.00 ppb
- Meteorite
- 1.7 ppm
- Earth's Crust
- 534.0 ppb
- Ocean
- 180 ppb
- Human Body
- 30.0 ppb