6th Group Elements in Periodic Table

6th Group Elements does not have a trivial name. The 6th group elements in Periodic Table include Chromium, Molybdenum, Tungsten and Seaborgium. They are explained below.

Chromium - What is It?


Symbol – Cr

Electron Configuration – [Ar] 3d54s1

Atomic Number – 24

Atomic Weight – 51.9961


Chromium is a steely-grey, radiant, hard and brittle metal. Because of its anti-corrosive properties, it is used in the production of stainless steel. It is used as a metal which can be highly polished while resisting tarnishing. The origin of its name is from greek word, chroma means colour. Due to its corrosion resistance and hardness, it is valued as a high quality metal. It is commercial used in the manufacture of stainless steel and chrome plating. It is the third hardest element in earth after diamond and boron. Chromium has a high specular reflection where it reflects about 70% of visible spectrum, i.e., 90% of infrared light being reflected. It shares the most properties of other sixth group elements. Chromium has the chemical symbol Cr. The discovery and first isolation of Chromium was made by French pharmacist and chemist, Louis Nicolas Vauquelin between the years, 1794 and 1797. The atomic number of Chromium is 24 and the atomic weight is 51.9961. It belongs to the fourth period of d-block elements.


Molybdenum - What is It?


Symbol – Mo

Electron Configuration – [Kr] 4d55s1

Atomic Number – 42

Atomic Weight – 95.95


Molybdenum is a chemical element with symbol Mo. It is a hard, silvery-white metal. Its high melting point, which is 2617°C, makes it one of the strongest and most widely used refractory metals. When used in steel, molybdenum improves that metal's toughness and strength, especially at high temperatures. It also increases the heat and chemical resistance of certain nickel-based metals. Molybdenum is used in making aircraft and missile parts. It is also an important trace element in plant nutrition. It was discovered by Swedish chemist Karl W. Scheele in 1778.


Tungsten - What is It?


Symbol – W

Electron Configuration – [Xe] 6s24f145d4

Atomic Number – 74

Atomic Weight – 183.84


Tungsten also called wolfram, is a chemical element with the symbol W. It is a moderately hard silver-white metal. Tungsten has many uses. It has the highest melting point of all metals and remains strong at very high temperatures. For these reason, it is used in equipment that must withstand high temperatures. Tungsten is added to steel to make steel harder stronger and more elastic. Tungsten steel tools last longer than ordinary steel tools. Tungsten and carbon form tungsten carbide, an extremely hard substance used in the tips of high speed cutting tools and in mining and petroleum drills. Tungsten is widely used in the electronics industry. It is made into heating filaments for vacuum tubes used in television sets and other electronic equipment. It is also used to make filaments for electric lights and contact points for the ignition systems of cars. Compounds of tungsten with either calcium or magnesium are phosphors. They are used in fluorescent lamps. Mixtures of alkali metals with different amounts of tungsten form tungsten bronzes, which are used in the paint industry. Its atomic number is 74 and its atomic weight is 183.84. It was discovered in 1783 by two Spanish chemists Fausto de Elhuyar and his brother Juan Jose.


Seaborgium - What is It?


Symbol – Sg

Electron Configuration – [Rn] 5f146d47s2

Atomic Number – 106

Atomic Weight – 271.134


Seaborgium (Element 106) is a synthetic chemical element and can be made in a laboratory but is not found in nature. It is also the most stable radioactive isotope. Chemists proved that seaborgium act as a heavier homologue to tungsten. It shares the most chemical properties of other elements in the sixth group. The discovery of Seaborgium has been a matter of dispute between American and Soviet scientists. In 1974, a few atoms of seaborgium were made in the labs of Soviet Union and US. The priority of the discovery was not given until 1997 that the IUPAC decided and named ‘seaborgium’ as the official name for the element. It was named after Glenn T. Seaborg, a pioneer in the discovery of Element 106. Seaborgium has the chemical symbol Sg. The atomic number of Seaborgium is 106 and the atomic weight is 271.134. It belongs to the seventh period of d-block elements.