Group 6
Group 6 may refer to: *Group 6 element, chemical element classification *Group 6 (racing), FIA classification for sports car racing *Group 6 Rugby League The Macarthur Division Rugby League is a senior Rugby league competition in New South Wales, Australia, administered by the New South Wales Rugby League. Formerly known as Group 6, the competition was, until 2019, run under the auspices of the ...

Group 6 Element
Group 6, numbered by IUPAC style, is a group of elements in the periodic table. Its members are chromium (Cr), molybdenum (Mo), tungsten (W), and seaborgium (Sg). These are all transition metals and chromium, molybdenum and tungsten are refractory metals. The electron configuration of these elements do not follow a unified trend, though the outermost shells do correlate with trends in chemical behavior: "Group 6" is the new IUPAC name for this group; the old style name was "''group VIB''" in the old US system (CAS) or "''group VIA''" in the European system (old IUPAC). Group 6 must not be confused with the group with the old-style group crossed names of either ''VIA'' (US system, CAS) or ''VIB'' (European system, old IUPAC). ''That'' group is now called group 16. History Discoveries Chromium was first reported on July 26, 1761, when Johann Gottlob Lehmann found an orange-red mineral in the Beryozovskoye mines in the Ural Mountains of Russia, which he named "Siberian red ...
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Group 6 (racing)
Group 6 was the official designation applied by the FIA to two motor racing classifications, the Prototype-Sports Car category from 1966 to 1971 and the Two-Seater Racing Cars class from 1976 to 1982. Group 6 Prototype-Sports Cars (1966 to 1971) The original Group 6 was introduced for the 1966 racing season, at the same time as a new Group 4 Sports Car category. Whilst Group 4 specified that competing cars must be one of at least fifty examples built, Group 6 had no minimum production requirement. Nor did it have a maximum engine capacity limit although there were weight, dimensional and other restrictions placed on the Group 6 cars.M.L Twite, The World’s Racing Cars, 4th Edition, 1970, Page 136 The Prototypes and Sports Cars categories each had their own international championships to fight for but many of the major international endurance races such as the 24 Hours of Le Mans would count as qualifying rounds for both championships. 1968 saw a three-litre engine capacity lim ...
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