hassium definition of hassium in the Free Online Encyclopedia.

hassium (hăs`ēəm, häs`–), artificially produced radioactive chemical element; symbol Hs; at. no. 108; mass number of most stable isotope 265; m.p., b.p., sp. gr., and valence unknown. Situated in Group 8 of the periodic table periodic table, chart of the elements arranged according to the periodic law discovered by Dmitri I. Mendeleev and revised by Henry G. J. Moseley. In the periodic table the elements are arranged in columns and rows according to increasing atomic number (see the table
..... Click the link for more information. , it is expected to have properties similar to those of osmium osmium , metallic chemical element; symbol Os; at. no. 76; at. wt. 190.2; m.p. 3,045±30°C;; b.p. 5,027±100°C;; sp. gr. 22.57 at 20°C;; valence usually +0 to +8.
..... Click the link for more information. .

In 1984 a German research team led by P. Armbruster and G. Münzenberg at the Institute for Heavy Ion Research at Darmstadt bombarded lead-208 atoms with iron-58 ions. In 10 days of bombardment, they successfully produced three atoms of an isotope of element 108 with mass number 265 and a half-life half-life, measure of the average lifetime of a radioactive substance (see radioactivity) or an unstable subatomic particle. One half-life is the time required for one half of any given quantity of the substance to decay.
..... Click the link for more information. of only 2 msec. They suggested that the new element be named hassium, which is derived from the Latin name for the German state of Hesse Hesse , Ger. Hessen, state (1994 pop. 5,800,000), 8,150 sq mi (24,604 sq km), central Germany. Wiesbaden is the capital. It is bounded by Baden-Württemberg and Bavaria in the south, Rhineland-Palatinate in the west, North Rhine–Westphalia and Lower
..... Click the link for more information. , where the institute is located. In 1994 a committee of the International Union of Pure and Applied Chemistry (IUPAC), convened to resolve naming disputes for the transactinide elements transactinide elements , in chemistry, elements with atomic numbers greater than that of lawrencium (at. no. 103), the last member of the actinide series. See transuranium elements.
..... Click the link for more information. , recommended that element 108 be named hahnium. The name hassium was adopted internationally, however, in 1997.

See also synthetic elements synthetic elements, in chemistry, radioactive elements that were not discovered occurring in nature but as artificially produced isotopes. They are technetium (at. no. 43), which was the first element to be synthesized, promethium (at. no. 61), astatine (at. no.
..... Click the link for more information. ; transuranium elements transuranium elements, in chemistry, radioactive elements with atomic numbers greater than that of uranium (at. no. 92). All the transuranium elements of the actinide series were discovered as synthetic radioactive isotopes at the Univ.
..... Click the link for more information. .

hassium

a synthetic element produced in small quantities by high-energy ion bombardment. Symbol: Hs; atomic no. 108

hassium [′hä·sē·əm]

(chemistry)

A chemical element, symbolized Hs, atomic number 108, a synthetic element; the sixteenth transuranium element.

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No references found	A iron (Fe) B hassium (Hs) C osmium (Os) D francium (Fr) 3. The periodic table by Science World First created in 1984, hassium doesn't exist in nature--it must be made by combining the nuclei of lighter elements. Hassium holds its place at the table by J.G. / Science News ARGON starts in ring 2, as do BARIUM, BORON and CERIUM; IRON and NEON both start in ring 3; TIN starts in ring 5; LEAD starts in ring 7; HASSIUM and IODINE start in ring 8; and SILVER starts in ring 10. Satanix by Francis, Darryl / Word Ways	Haskell Curry Haskell User's Gofer System Haskell, Eddie Haskell, Norman Haskins, Charles Homer Haskovo Hasköy HASL Hasmonean dynasty Hasmoneans hasp Hassal's body Hassam, Childe Hassan Hassan al- Amri Hassan II Hassan, Abu Hasse diagram Hasse, Johann Adolph Hassel, Odd Hasselmann, Wilhelm Hasselt Hassenaah Hassi Messaoud Hassi Rmel hassium Hassler, Hans Leo hassock Hassun, Rizk Allah Hassuna Hassunan Culture hastarium hastate Hastelloy haster Hastert, Dennis Hastie, William Henry Hastinapura Hasting Hastings Hastings Banda Hastings Lionel Ismay Hastings, Alcee Hastings, Battle Hastings, Battle of Hastings, Francis Rawdon-Hastings, 1st marquess of Hastings, Serranus Clinton Hastings, Thomas Hastings, Warren hastingsite hasty mine field	Hasselblad Data Camera Hasselblad Electric Camera Hasselblad's Natural Color Solution Hasselhoff equation Hassell, Jon Hasselmann, Wilhelm Hasselmans, Alphonse Hasselt Hasselt Hasselt Hasseltse Zwemvereniging Spartacus Hassenaah Hassenfeffer Hassenfeld Bros. Hassenpfeffer HASSET Hassett Willis and Company Hassi Berkine South Hassi Messaoud Hassi Rmel Hassid Hassidic Hassidim Hassidim Hassidism Hassidism Hassidism Hassids HASSIP hassium hassle hassle hassle about hassle factor Hassle Free Clinic hassle with hassled Hassler Hassler Communication Systems Technology, Inc. Hassler, Hans Leo Hassler, Hans Leo Hassler, Jacob Hassler, Kaspar hassles hassling Hasso Plattner Institute Hasso Plattner Ventures Africa hassock hassock Hassocks Hassocks Hassun, Rizk Allah Hassuna Hassunan Culture hast hast Hasta Hasta El Gol Siempre Hasta la vista

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A iron (Fe) B hassium (Hs) C osmium (Os) D francium (Fr) 3.

The periodic table by Science World

First created in 1984, hassium doesn't exist in nature--it must be made by combining the nuclei of lighter elements.

Hassium holds its place at the table by J.G. / Science News

ARGON starts in ring 2, as do BARIUM, BORON and CERIUM; IRON and NEON both start in ring 3; TIN starts in ring 5; LEAD starts in ring 7; HASSIUM and IODINE start in ring 8; and SILVER starts in ring 10.

Satanix by Francis, Darryl / Word Ways

hassium playV2('en/UK/d7/d7dtdhsdssd3srsghn')

hassium