The element that has the atomic number 17 is? List the symbols for two transition metals. Cu, Ag, and Au are all in what group # 11 7. Name two noble gases Any in Group 18 8. Give the symbol for two halogens. Any in group 17 9. What is the symbol for element with atomic number 74? What is the atomic mass of copper. A) 37 protons and 37 neutrons B) 37 protons and 37 electrons C) 37 electrons D) 74 protons.

The Element Tungsten

[Click for Isotope Data]

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

Atomic Number 74 Meaning

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.

Atomic Number 74 Symbol

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.

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.

Estimated Crustal Abundance: 1.25 milligrams per kilogram

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

Electron Shell Configuration:	1s2
2s2 2p6
3s2 3p6 3d10
4s2 4p6 4d10 4f14
5s2 5p6 5d4
6s2

For questions about this page, please contact Steve Gagnon.

In the modern periodic table, the elements are listed in order of increasing atomic number. The atomic number is the number of protons in the nucleus of an atom. The number of protons define the identity of an element (i.e., an element with 6 protons is a carbon atom, no matter how many neutrons may be present). The number of protons determines how many electrons surround the nucleus, and it is the arrangement of these electrons that determines most of the chemical behavior of an element.

In a periodic table arranged in order of increasing atomic number, elements having similar chemical properties naturally line up in the same column (group). For instance, all of the elements in Group 1A are relatively soft metals, react violently with water, and form 1+ charges; all of the elements in Group 8A are unreactive, monatomic gases at room temperature, etc. In other words, there is a periodic repetition of the properties of the chemical elements with increasing mass.

In the original periodic table published by Dimitri Mendeleev in 1869, the elements were arranged according to increasing atomic mass— at that time, the nucleus had not yet been discovered, and there was no understanding at all of the interior structure of the atom, so atomic mass was the only guide to use. Once the structure of the nucleus was understood, it became clear that it was the atomic number that governed the properties of the elements.