Transition+metals+(v+-+vi)

Transition metals (v - vi) Family: Transition metal (5) __**Elements:**__ **__Symbol__** Vanadium - V Niobium - Nb Tantalum - Ta Dubnium - Db Vanadium - It is a soft, silvery, gray metal Niobium - It is a rare, soft, grey metal Tantalum - It is a rare, hard, blue-grey metal Dubnium - unknown, "probably" silvery, white or metallic grey Vanadium - 23 Niobium - 41 Tantalum - 73 Dubnium - 105 Vanadium - 50.915 g·mol−1 Niobium - 92.90638 g.mol-1 Tantalum - 180.94788g.mol-1 Dubnium - [268]g.mol-1 Vanadium - 23 Niobium - 41 Tantalum - 73 Dubnium - 105 Vanadium - 23 Niobium - 41 Tantalum - 73 Dubnium - 105 Vanadium - 4 Shells Niobium - 5 Shells Tantalum - 6 Shells Dubnium - 7 Shells Vanadium - 2183 K, 1910 °C, 3470 °F Niobium - 2750 K, 2477 °C, 4491 °F Tantalum - 3290 K, 3017 °C, 5463 °F Dubnium - unknown Vantalum - 134 pm Niobium - 146 pm Tantalum - 146 pm Dubnium - unknown Vantalum - 1801 Niobium - 1864 - 1865 Tantalum - 1802 Dubnium - 1968-1970
 * __Appearance__**
 * __Atomic #__**
 * __Atomic Mass__**
 * __# of proton's__**
 * __# of valence electron/s__**
 * __# of shells__**
 * __Melting Point__**
 * __Atomic Radius__**
 * __Dicovery Date__**

[[image:http://upload.wikimedia.org/wikipedia/commons/8/83/Tantalum_single_crystal_and_1cm3_cube.jpg width="290" height="142"]]
Yes i do, i am able to see that as we go down the table of transition metals (5 - v), the number of shells increase, the number of protons and elctrons increases, as well as the melting point. They are all a family, with similarities because they all contrain a grey metal/metallic appearance. The elements are however, all different and individuals, for example, their discovery date, their weight mass, their symbols, etc. __**Transition metals vi**__
 * 1. Can you see any trends in the information collected?**
 * 2. How are the elements of this family the same?**
 * 3. How are the elements of this family different?**
 * 4. A scientific explanation why they are suitable for that particular use &**
 * 5. Uses of these elementsand/or their compounds**
 * Vanadium -** is a source that has very structual strength and neutron cross section properties that are required to produce a good, well-quality nuclear appliance.
 * Niobium -** is used to make steel with it's strength and corrosion resistance.
 * Tantalum -** is another source that steel is produced from for it's high melting point, high strength and good ductility.


 * Element || Symbol || Appearance || Atomic # || Atomic Mass || # of proton's || # of valence electron/s || # of shells || Melting point || Atomic Radius || Discovery Date ||
 * Chromium || cr || Silvery metallic hard metal || 24 || 51.9961 || 24 || 1 || 4 || 1907°c || 140pm || 1797 ||
 * Molybdenum || MO || Silvery-white metal || 42 || 95.94 || 42 || 1 || 5 || 2623°c || 139pm || 1778 ||
 * Tungsten || W || Silvery-white metal || 74 || 183.85 || 74 || 2 || 6 || 5550°c || 139pm || 1779 ||
 * Seaborgium || Sg || radioactive synthetic metal || 106 || 263 || 106 || 2 || 7 || °c || °c || 1974 ||

= //__ Chromium __// = Chromium is used mainly in stainless steel, as it prevents corrosion (meaning the breaking away of the metal) and also the discolouration of the steel. For example on cars and bicycles, chromium plating produces a smooth, silver finish that is highly resistant to corrosion. Other examples of when chromium is used are in car parts, tools, knives, camouflage paint, stereos, video tapes, lasers and in rubies and emeralds as it gives them their colour. In the latest years, chromium has been used in dietary supplements for the health benefits of the human body. Some scientists today believe that chromium assists insulin bring glucose (sugar) from the blood into the cells for energy. This is sometimes used for people with diabetes. Recent clinical studies have shown that chromium can be beneficial to the following conditions diabetes, obesity, strength training or bodybuilding and heart health. There are many structures and compounds that chromium forms. The main three compounds that chromium forms are oxide (CrO 2, CrO 3, Cr 2 O 3 ), Chloride (CrCl 2, CrCl 3 ) and Hydride (CrH). In some ways chromium compounds are valued as pigments for their vivid green, yellow, read and orange colours. **//__ Molybdenum __//** Molybdenum is used in aircraft and missiles. Molybdenum is an element that can strengthen and resist expanding and softening in high temperature areas. This is why it is clearly used in critical areas where high temperatures occur, such as in nuclear power plants and aircraft engines. In nitrogenise enzymes molybdenum is a vital component because it allows a conversion of nitrogen gas in the air into nitrates that are very vital for plant growth. The compounds that molybdenum forms consist of oxide (MoO 2, MoO 3 ), Chloride (MoCl 2, MoCl 3, MoCl 4, MoCl 5 , MoCl 6 ) and hydride. = //__ Tungsten __// = Tungsten is widely used for filaments in older style electric bulbs and electronic tubes (not energy saving ones). It can also be used for making heavy metal alloys, as it is very hard. However it is more commonly used in electronics. The compounds that tungsten forms are oxide (WO 2, WO 3 ) and Chloride (WCl 2, WCl 4, WCl 6 ). = //__ Seaborgium __// = Seaborgium is not used in anything, as it is radioactive. In this case it is only used for research interest. Due to its radio-activeness, Seaborgium does not form any compounds.

**__ Trends __** There are a few trends that are seized through the four transition metals. Firstly, each one gets larger in its atomic number starting from chromium (Cr) with 24 to Seaborgium (Sg) with 106. Secondly, the appearances of all the elements (except for Seaborgium) are a white-silvery metal. Lastly, as the atomic number gets larger the uses and compounds become smaller.