74W183.841
Transition Metald-block
Tungsten
Element 74 on the periodic table, symbol W, group 6, period 6.
Tungsten, also known as wolfram, is a chemical element with symbol W and atomic number 74. The word tungsten comes from the Swedish language tung sten, which directly translates to heavy stone. Its name in Swedish is volfram, however, in order to distinguish it from scheelite, which in Swedish is alternatively named tungsten.
Appearance: grayish white, lustrous
Properties
- Atomic Number
- 74
- Atomic Mass
- 183.8410 u
- Group
- 6
- Period
- 6
- Block
- d-block
- Category
- Transition Metal
- State at 25 °C
- Solid
- Melting Point
- 3,695 K · 3,421.9 °C
- Boiling Point
- 6,203 K · 5,929.9 °C
- Density
- 19.25 g/cm³
- Atomic Radius
- 135 pm
- Electronegativity
- 2.36
- Oxidation States
- +4, +6
- Abundance in Crust
- 1.25 mg/kg
- Discovered
- 1783
- Discovered By
- Carl Wilhelm Scheele
Electron Configuration
[Xe] 4f14 5d4 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d4
Ionisation Energies (kJ/mol)
- 1. 770
- 2. 1,700
Elements near Tungsten
Elements in the same group share the number of outer electrons and behave in similar ways. Elements in the same period share a shell, so they change steadily from left to right.