All of these elements have a full outer shell of electrons and that is why these are all non reactive. 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. These elements already have a full valence shell with 8 valence electrons. 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. They are the elements which don't react with anything. Helium is used to fill floating balloons. Group 8 Elements - Introduction Group 8 elements are the rare/inert/noble gases. Members of the noble gasses include: 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. 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. Get an answer to your question “The element in period 4 and group 8 ...” in 📙 Chemistry if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions. 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). Herein, what do Group 8 elements have in common? Group 8 elements are also known as the noble gasses. Important The name comes from the fact that these elements are virtually unreactive towards other elements … They occur as single atoms. This leaves the elements non-reactive as they are already stable and in a low energy state. In this lesson, you will learn about the preparation, properties, and uses for compounds made using group 4 elements on the periodic table. Hassium is created by nuclear reactors, it is not found in nature. List the atomic symbol and element names. This video resource, taken from the CHRISTMAS LECTURES 2012 contains an overview of the Group 8 (18) elements; the Noble Gases. Fresh iron surfaces appear lustrous silvery-gray, but oxidize in normal air to give hydrated iron oxides, commonly known as rust. Chemical Characteristics. 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. Argon & neon are used in fluorescent lights. : Number of groups of class exactly two Iron, ruthenium and osmium are grayish metals. Which elements have group number of 8? 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. 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). The Group 8 The group 8 in the periodic table of elements, is called the iron family. Atomic number group 8 elements list. The presenter, Dr Peter Wothers, considers interesting applications of these elements. 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