Tungsten at Chemical Elements.com 

 

Basic Information


Name: Tungsten
Symbol: W
Atomic Number: 74
Atomic Mass: 183.84 amu
Melting Point: 3410.0 °C (3683.15 °K, 6170.0 °F)
Boiling Point: 5660.0 °C (5933.15 °K, 10220.0 °F)
Number of Protons/Electrons: 74
Number of Neutrons: 110
Classification: Transition Metal
Crystal Structure: Cubic
Density @ 293 K: 19.3 g/cm3
Color: Silver


Atomic Structure

[Bohr Model of Tungsten]  
Number of Energy Levels: 6

    First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 18
    Fourth Energy Level: 32
    Fifth Energy Level: 12
    Sixth Energy Level: 2

Isotopes

Isotope Half Life
W-180 Stable
W-181 121.2 days
W-182 Stable
W-183 Stable
W-184 Stable
W-185 74.8 days
W-185m 1.6 minutes
W-186 Stable
W-187 23.9 hours
W-188 69.4 days

Facts


Date of Discovery: 1783
Discoverer: Fausto and Juan Jose de Elhuyar
Name Origin: From the Swedish words tungs ten (heavy stone)
Symbol Origin: From wolfram (its German name)
Uses: used widely in electronics industry
Obtained From: scheelite, wolframite