Group+05

Devon B.

The Vanadium Family

All transition metals.

Name:Vanadium Symbol:V Atomic Number:23 Atomic Mass:50.94

Physical Properties of Vanadium: Vanadium is a silvery white metal often used in wrenches. It is ductile which means it can be pulled into thin wires. Melting Point:1,910° C Boiling Point: 3,000°C Freezing Point:1,910° C Density:6.11 grams per cubic cm Conductivity:30.7 W m K State at Room Temperature:Solid Solubility:no Malleability:yes Ductility:yes Electron Configuration:2

Uses as an element:Is used in surgical instruments and tools. Uses of the common compounds and the common compounds formula:VOCI 3 which is Vanadium oxytrichloride, which is used to reagent organic synthesis.

Vanadium Chemical Properties:Moderately reactive. Does not react with oxygen when it is at room temperature. Doesn't dissolve in water, although it does react with some acids. Usually at higher temp. than lower temps. Reactivity with oxygen:mild Flammability:non flammable General Reactivity:mild/none Common Isotopes:V 50 V 51 V 53 Fun Fact:Used in lacrosse shafts.

Name:Niobium Symbol:Nb Atomic Number:41 Atomic Mass:92.9

Physical Properties of Niobium: Niobium is a rare ductile metal, that is soft and gray in color. Freezing Point:2477° C Melting Point:2477° C Boiling Point:5100° C Density:8.57 grams per cubic cm Conductivity:54 W m K State at Room Temperature:Solid Solubility:no Malleability:yes Ductility:Yes Electron Configuration:2

Uses as an element: Niobium is used in metal alloys. Uses of the common compounds and the common compounds formula:NbN or Niobium Nitride is used to detect infrared lights.

Chemical Properties: Niobium will not combine with oxygen as well as several other active elements unless at a high temperature. Is also resistant to most acids. Reactivity with oxygen:none Flammability:non flammable General Reactivity:none Common Isotopes: Niobium-93 or N 93 Fun Fact:Niobium is named after the daughter of the Greek mythology King Tantalus, Niobe.

Name:Tantalum Symbol:Ta Atomic Number:73 Atomic Mass:180.94

Physical Properties of Tantalum: Tantalum is a ductile metal that is also hard, dark in color, and is easily fabricated. Melting Point:3017°C Boiling Point:5458°C Freezing Point:3017° C Density:16.65 grams per cm Conductivity:57.5 W m K State at Room Temperature:Solid Solubility:None Malleability:Yes Ductility:yes Electron Configuration:2

Uses as an element:In metal alloys. Uses of the common compounds and the common compounds formula:Tantalum nitride or TaN is used in electronic applications.

Chemical Properties: Tantalum is one of the most nonreactive metals. Only fluorine gas at room temp. reacts with tantalum. At above 150° C tantalum will react with other acids. Reactivity with oxygen:none Flammability:no General Activity:none Common Isotopes:W 182 Hf 178 Ta181 Fun Fact:Tantalum is named after King Tantalus.





Name:Dubnium Symbol:Db Atomic Number:105 Atomic Mass:(262)

Physical Properties of Dubnium: Has no specific shape or color, but is believed by most scientists that it most likely has a metallic ,silvery-white, grayish color. Melting Point:unknown Boiling Point:unknown Density:unknown Electron Configuration:1s 2 2s 2 p 6 3s 2 d 10 4s 2 p 6 d 10 f 14 5s 2 p 6 d 10 f 14 6s 2 p 6 d 13 7s 2

Chemical Properties: Is radioactive and a synthetic metal.

Common Isotopes:Db 268 Db 262 Db 268

History

History: Vanadium is an element that was discovered twice. The first time by Andres Manuel del Rio, a Spanish born Mexican. He discovered the element in Mexico City in 1803. Andres named the element panchronium, but later renamed it erythronium. He later withdrew his claim about the new element after a dispute with Collett-Desotils. Collett believed it was a impure version of chronium. The second time Vanadium was discovered was by Nils Gabriel Sefstrom in 1831. Nils renamed the element Vanadium after Northern-Germanic tribes' or Scandinavian goddess of beauty and fertility; Vanadis.

History: Niobium was discovered by Charles Hatchett in 1801. Niobium was discovered in a sample that was sent to England from Massachusetts, United States. The one who sent it over was John Winthrop.

History:Tantalum was discovered in 1802 in Sweden by Andres Ekeberg.

History:Dubnium was created by the Joint Institute for Nuclear Research in Dubna, Russia. It was first reported in 1967.  Bibliography 1. //The World Book Encyclopedia U-V Volume 20//. Ed. World Book Childcraft International. u-v ed. N.p.: n.p., 1978. N. pag. Print. 2.Barbalace, Kenneth. //environmentalchemistry.com//. Ed. Kenneth Barbalace. N.p., 22 Oct. 1995. //Google.com//. Web. 20 Dec. 2009. . 3. code format="code" Chemicool Periodic Table. 12/20/2009 . code