Discovered By: Jaun Jose D'Elhuyar, Fausto Elhuyar
Discovery year: 1783

The following table showing some properties of Tungsten(W):

Table Example
Atomic number 74
Group 6
Period 6
Block d
Electrons 74
Protons 74
Neutrons 110
Atomic weight 183.84
Oxidation states -2, -1, +2, +3, +4, +5, +6
Ionic charge W^6+


Table Example
Electrons per shell K2 L8 M18 N32 O12 P2
Electron configuration 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6 6s^2 4f^14 5d^4
Atomic radius 193 pm
Covalent radius 162 pm
Boiling point 5555°C
Melting point 3422°C
Phase Solid
Fusion heat 35 kJ.mol^-1
Vaporization heat 800 kJ.mol^-1
Thermal expansion 4.5*10^-6 K^-1


Table Example
Color Gray
Brinell hardness 2570 MPa
Bulk modulus 310 GPa
Density 19250 kg.m^-3
Liquid density 17600 kg.m^-3
Mohs hardness 7.5
Poisson ratio 0.28
Shear modulus 161 GPa
Sound speed 5174 m.s^-1
Vickers hardness 3430 MPa


Table Example
Young's modulus 411 GPa
Electrical type Conductor
Magnetic type Paramagnetic
Resistivity 5*10^-8 Ohm.m
Superconducting point 0.015 K
Electronegativity 2.36
Valence 6
Electron affinity 78.6 kJ.mol^-1
First ionization energy 770 kJ.mol^-1
Radioactive No
Neutron cross section 18.4 barn