Sodium
Appearance
Sodium is a chemical element, in the periodic table that has the symbol Na (from Natrium) and atom number 11.
- Symbol: Na
- Group: Alkali metal
- Crystal Structure: Cubicbody centered
- Atomic number: 11
- Atomic weight: 22.98977
- Shells: 2,8,1
- Filling orbital: 3s1
- Melting point: 97.8°C
- Boiling point: 882.9°C
- Electronegativity: 0.93
- Covalent radius: 1.54 Å
- Atomic radius: 2.23 Å
- Atomic volume: 23.7 cm3/mol
- First ionization potential: 5.139 V
- 2nd ionization potential: 47.286 V
- 3rd ionization potential: 71.641 V
- Oxidation states: 1
- Density at 293 K: 0.971 g/cm3
- Specific heat: 1.23 J/gK
- Heat of vaporization: 96.960 kJ/mol
- Heat of fusion: 2.598 kJ/mol
- Electrical conductivity: 0.139 106/cm ohm
- Thermal conductivity: 1.41 W/cmK
Isotopes
Sodium has two radioactive cosmogenic isotopes (22Na, half-life = 2.605 years; 24Na, half-life = ~ 15 hours)
External Link:
Los Alamos National Laboratory - Sodium
See: Periodic table