• Atomic Number 74 Definition
• Atomic Number 74 Chemical Name

The Element Tungsten

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1. The element tungsten (symbol W, atomic number 74) has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d4 and the abbreviated noble gas form Xe 4f14 5d4 6s2.
2. A) 37 protons and 37 neutrons B) 37 protons and 37 electrons C) 37 electrons D) 74 protons.
3. Origin of Name: From the Swedish words tung sten, meaning heavy stone. The symbol comes from the German word wolfram.: Date and Place of Discovery: Discovered in 1781; isolated in 1783: Discovered.

Atomic number: 74 Relative atomic mass: 183.84 State at 20°C: Solid Key isotopes 182 W, 184 W, 186 W Electron configuration Xe 4f 1 4 5d 4 6s 2 CAS number: 7440-33-7 ChemSpider ID: 22403: ChemSpider is a free chemical structure database.

Atomic Number: 74

Atomic Weight: 183.84

Melting Point: 3695 K (3422°C or 6192°F)

Boiling Point: 5828 K (5555°C or 10031°F)

Density: 19.3 grams per cubic centimeter

Phase at Room Temperature: Solid

Element Classification: Metal

Period Number: 6

Group Number: 6

Group Name: none

What's in a name? From the Swedish words tung sten, which mean 'heavy stone.' Tungsten's chemical symbol comes from its earlier, Germanic name, Wolfram. The name Wolfram comes from the mineral wolframite, in which it was discovered. Wolframite means 'the devourer of tin' since the mineral interferes with the smelting of tin.

Say what? Tungsten is pronounced as TUNG-sten.

History and Uses:

Tungsten was discovered by Juan José and Fausto Elhuyar, Spanish chemists and brothers, in 1783 in samples of the mineral wolframite ((Fe, Mn)WO₄). Today, tungsten is primarily obtained from wolframite and scheelite (CaWO₄) using the same basic method developed by José and Elhuyar. Tungsten ores are crushed, cleaned and treated with alkalis to form tungsten trioxide (WO₃). Tungsten trioxide is then heated with carbon or hydrogen gas (H₂), forming tungsten metal and carbon dioxide (CO₂) or tungsten metal and water vapor (H₂O).

Pure tungsten is a light gray or whitish metal that is soft enough to be cut with a hacksaw and ductile enough to be drawn into wire or extruded into various shapes. If contaminated with other materials, tungsten becomes brittle and difficult to work with. Tungsten has the highest melting point of all metallic elements and is used to make filaments for incandescent light bulbs, fluorescent light bulbs and television tubes. Tungsten expands at nearly the same rate as borosilicate glass and is used to make metal to glass seals. Tungsten is also used as a target for X-ray production, as heating elements in electric furnaces and for parts of spacecraft and missiles which must withstand high temperatures.

Tungsten is alloyed with steel to form tough metals that are stable at high temperatures. Tungsten-steel alloys are used to make such things as high speed cutting tools and rocket engine nozzles.

Mac talking points lip pencil. Tungsten carbide (WC) is an extremely hard tungsten compound. It is used in the tips of drill bits, high speed cutting tools and in mining machinery. Tungsten disulfide (WS₂) is a dry lubricant that can be used to temperatures as high as 500°C. Tungsten forms compounds with calcium and magnesium that have phosphorescent properties and are used in fluorescent light bulbs.

Atomic Number 74 Definition

Estimated Crustal Abundance: 1.25 milligrams per kilogram

Atomic Number 74 Chemical Name

Estimated Oceanic Abundance: 1×10^-4 milligrams per liter

Number of Stable Isotopes: 2 (View all isotope data)

Ionization Energy: 7.98 eV

Oxidation States: +6

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