Tung

Tungsten, also known as wolfram, is a chemical element with the symbol W and atomic number 74. It is a rare metal found naturally on Earth almost exclusively combined in chemical compounds. Tungsten is notable for its robustness and high melting point, which is the highest of all the elements discovered, melting at 3422 °C (6192 °F, 3695 K).

Properties

Tungsten is a transition metal known for its high density and strength. It has a density of 19.25 g/cm³, making it one of the densest elements. Its melting point is 3422 °C, and its boiling point is 5555 °C. Tungsten is also known for its hardness and is often used in applications that require materials that can withstand high temperatures and wear.

Applications

Tungsten is used in a variety of applications due to its unique properties. It is commonly used in light bulb filaments, X-ray tubes, and superalloys. Tungsten carbide, a compound of tungsten, is used in cutting tools and abrasives due to its hardness.

Biological Role

Tungsten has a limited biological role in humans and is not considered an essential element. However, it is used by some bacteria and archaea in certain enzymes.

Health Effects

Exposure to tungsten and its compounds can occur in industrial settings. While tungsten is generally considered to have low toxicity, certain compounds, such as tungsten hexafluoride, can be hazardous. Proper safety measures should be taken to avoid exposure.

See Also

• Periodic table
• Transition metals
• Refractory metals

External Links

• Tung on WikiMD