Discovered By: Humphry Davy
Discovery year: 1807

The following table showing some properties of Sodium(Na):

Table Example
Atomic number 11
Group 1
Period 3
Block s
Atomic weight 22.98976
Electons 11
Protons 11
Neutrons 12
Oxidation states +1
Ionic charge Na^+


Table Example
Electrons per shell K2 L8 M1
Electron configuration 1s^2 2s^2 2p^6 3s^-1
Atomic radius 190 pm
Covalent radius 166 pm
Van der Waals radius 227 pm
Boiling point 883°C
Melting point 97.72°C
Phase Solid
Fusion heat 2.6 kJ.mol^-1
Specific heat 1230 J.kg^-1.k^-1


Table Example
Vaporization heat 97.7 kJ.mol^-1
Thermal expansion 7.1-10^-5
Color silver
Brinell hardness 0.69 MPa
Bulk modulus 6.3 GPa
Density 968kg.m^-3
Liquid density 927kg.m^-3
Mohs hardness 0.5
Shear modulus 3.3GPa
Sound speed 3200 m.s^-1


Table Example
Thermal conductivity 140 W.m^-1.k^-1
Young's modulus 10 GPa
Electrical conductivity 2.1 10^7 S.m^-1
Electrical type Conductor
Magnetic type Paramagnetic
Electronegativity 0.93
Valence 1
Radioactive No
neutron cross section 0.53 barn
Electron affinity 52.8 kJ.mol^-1