Tungsten - Element information, properties and uses | Periodic …
Element Tungsten (W), Group 6, Atomic Number 74, d-block, Mass 183.84. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Tungsten - Wikipedia
Tungsten (also called wolfram) [12][13] is a chemical element; it has symbol W and atomic number 74. It is a rare metal found naturally on Earth almost exclusively as compounds with other elements. It was identified as a distinct element in 1781 and first isolated as a metal in 1783.
tungsten - NIST Chemistry WebBook
Chemical structure: This structure is also available as a 2d Mol file; Permanent link for this species. Use this link for bookmarking this species for future reference. Information on this page: Gas phase thermochemistry data; Condensed phase thermochemistry data; Reaction thermochemistry data; References; Notes; Other data available: Gas phase ...
Tungsten | W (Element) - PubChem
Tungsten is a chemical element with symbol W and atomic number 74. Classified as a transition metal, Tungsten is a solid at room temperature. [Xe]6s 2 4f 14 5d 4. J.C. Slater, J Chem Phys, 1964, 41 (10), 3199-3205. DOI:10.1063/1.1725697.
Element Tungsten - AtomTrace
The three atomic emission spectra for Tungsten can be shown on graph bellow: NIST Atomic Spectra Database [1], gfall.dat file from Kurucz CD-ROM No. 23 [2] and AtomTrace database. Lines in the AtomTrace list were observed in the optical emission of laser induced plasmas, and the respective values of spectroscopic constants are taken from [1].
physics.nist.gov Elemental Data Index: 74 Tungsten
Relative intensities provide a description of what the emission spectrum of a particular element in a particular (low-density) source looks like. More help. Click a database icon to retrieve data on Tungsten: Back to.
Strong Lines of Tungsten ( W ) - NIST
Tungsten (W) Strong Lines of Tungsten ( W ) Intensity : Vacuum Wavelength (Å) Spectrum : Reference : 1000 P: 1951.051
Tungsten - 74 W: properties of free atoms - University of Sheffield
2018年8月2日 · A representation of the atomic spectrum of tungsten. Ionisation Energies and electron affinity. The electron affinity of tungsten is 78.6 0.815(8) eV kJ mol ‑1. The ionisation energies of tungsten are given below.
Atomic Data for Tungsten (W ) - NIST
W I Ground State 1s 2 2s 2 2p 6 3s 2 3p 6 3d 1 0 4s 2 4p 6 4d 1 0 4f 1 4 5s 2 5p 6 5d 4 6s 2 5 D 0 Ionization energy 63427.7 cm -1 (7.86403 eV) Ref. CS96 W II Ground State 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 3 d 1 0 4 s 2 4 p 6 4 d 1 0 4 f 1 4 5 s 2 5 p 6 5 d 4 6 s 6 D 1 / 2
By definition, tungsten contains 74 protons in its nucleus besides 84 to 116 neutrons. Thirty-five isotopes (including isomers) are known. Five of them are naturally occurring; the rest can be formed artificially and are unstable. Their half-life varies …