Tungsten

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Tungsten
183.84(1)



  W
74
1s22s22p63s23p63d104s24p6 4d105s25p64f145d46s2
[ ? ] Transition metal:
Properties:
Steel-gray metal. Highly corrosion resistant.


Tungsten is a chemical element, having the chemical symbol W. Its atomic number (the number of protons) is 74. It has a standard atomic weight of 183.5 g•mol −1 and is a solid in its elemental form.

Tungsten is considered a member of the "Transition metal" class of elements. At a pressure of 101.325 kPa, it has a boiling point of 5,555 °C and a melting point of 3,422 °C.

Because of its very high melting point, tungsten filaments were used for many years in incandescent light bulbs.