11 Na
Alkali metal
Sodium
Component of table salt.
Properties of Sodium
- Atomic number (Z)
- 11
- Symbol
- Na
- Atomic mass
- 22.99 g/mol
- Category
- Alkali metal
- Group
- 1
- Period
- 3
- Electron configuration
- [Ne] 3s¹
- Electronegativity (Pauling)
- 0.93
- Atomic radius
- 190 pm
- First ionization energy
- 496 kJ/mol
- Melting point
- 370.87 K (97.7 °C)
- Boiling point
- 1156 K (882.9 °C)
- Density
- 0.971 g/cm³
- Phase at 25 °C
- Solid
- Discovered
- Discovered in 1807
Frequently asked questions
What is Sodium?
Sodium (Na) is an alkali metal, element number 11 on the periodic table. Component of table salt.
What is the atomic number and atomic mass of Sodium?
Sodium has atomic number 11 and an atomic mass of about 22.99 g/mol.
What is the electron configuration of Sodium?
The electron configuration of Sodium is [Ne] 3s¹.
Where is Sodium on the periodic table?
Sodium sits in group 1, period 3, and is classified as a alkali metal.