Like the other group 8 elements, iron exists in a wide range of oxidation states, −2 to +7, although +2 and +3 are the most common. Herein, what do Group 8 elements have in common? Group 8 elements are also known as the noble gasses. They occur as single atoms. The name comes from the fact that these elements are virtually unreactive towards other elements … Fresh iron surfaces appear lustrous silvery-gray, but oxidize in normal air to give hydrated iron oxides, commonly known as rust. The Group 8 The group 8 in the periodic table of elements, is called the iron family. All of these elements have a full outer shell of electrons and that is why these are all non reactive. The presenter, Dr Peter Wothers, considers interesting applications of these elements. This video resource, taken from the CHRISTMAS LECTURES 2012 contains an overview of the Group 8 (18) elements; the Noble Gases. Which elements have group number of 8? This leaves the elements non-reactive as they are already stable and in a low energy state. Group 8A (or VIIIA) of the periodic table are the noble gases or inert gases: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). Group 8 Elements - Introduction Group 8 elements are the rare/inert/noble gases. Ruthenium and osmium, on the other hand, are extremely rare elements, with terrestrial abundances of only about 0.1 ppb and 5 ppb, respectively, and they were not discovered until the 19th century. The elements in this group are iron, ruthenium, osmium and hassium. Hassium is created by nuclear reactors, it is not found in nature. List the atomic symbol and element names. Quantity Value Explanation Total number of groups : 5 : See groups of prime-cube order, classification of groups of prime-cube order: Number of abelian groups : 3 : equals the number of unordered integer partitions of 3, the exponent part in .See classification of finite abelian groups and structure theorem for finitely generated abelian groups. : Number of groups of class exactly two Hassium (Hs) Atomic number group 8 elements list. Post date January 8, 2014 4 Comments on Element Infographics – Group 8 Getting towards the end of this particular series of infographics now – whilst this graphic completes the overview of specific groups, there are still graphics on the transition metals, lanthanides and actinides to come. This unreactivity is caused by the outer electron shell of the molecule having its full complement of 8 electrons thus not needing to react with other elements to achieve this. They make up about 1.5% of the atmosphere, with argon being the most common. Members of the noble gasses include: They are all transition metals.. Like other groups, the members of this family show patterns in electron configuration, especially in the outermost shells, resulting in trends in chemical behavior. Iron, ruthenium and osmium are grayish metals. Chemical Characteristics. Helium is used to fill floating balloons. Group 8 is a group (column) of chemical elements in the periodic table.It consists of iron (Fe), ruthenium (Ru), osmium (Os) and hassium (Hs). Argon & neon are used in fluorescent lights. Important These elements already have a full valence shell with 8 valence electrons. The chemistry of group 8 is dominated by iron, whose high abundance in Earth’s crust is due to the extremely high stability of its nucleus. They are the elements which don't react with anything. 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