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).[1] "Group 8" is the modern standard designation for this group, adopted by the IUPAC in 1990.[1] It should not be confused with "group VIIIA" in the CAS system, which is group 18 (current IUPAC), the noble gases. In the older group naming systems, this group was combined with groups 9 and 10 and called group "VIIIB" in the Chemical Abstracts Service (CAS) "U.S. system", or "VIII" in the old IUPAC (pre-1990) "European system" (and in Mendeleev's original table). The elements in this group are all transition metals that lie in the d-block of the periodic table.
While groups (columns) of the periodic table are usually named after their lightest member (as in "the oxygen group" for group 16), iron group has historically been used differently; most often, it means a set of adjacent elements on period (row) 4 of the table that includes iron, such as chromium, manganese, iron, cobalt, and nickel, or only the last three, or some other set, depending on the context.
Like other groups, the members of this family show patterns in electron configuration, especially in the outermost shells, resulting in trends in chemical behavior.
^ abLeigh, Geoffrey J. (1990). Nomenclature of inorganic chemistry: recommendations 1990. Union internationale de chimie pure et appliquée. Oxford London Edinburgh: Blackwell scientific publ. ISBN 978-0-632-02494-0.
Group8 is a group (column) of chemical elements in the periodic table. It consists of iron (Fe), ruthenium (Ru), osmium (Os) and hassium (Hs). "Group...
of the early transition metal groups, where the lightest element is distinct from the very similar next two. All the group 3 elements are rather soft, silvery-white...
which each group suggesting its own name: the Dubna group named the element kurchatovium after Igor Kurchatov, while the Berkeley group named it rutherfordium...
resulting in trends in chemical behavior. This group has the defining characteristic whereby each component element has 5 electrons in their valence shell, that...
alchemical planetary name became the common name. The heaviest known group 12 element, copernicium, was first created on February 9, 1996, at the Gesellschaft...
fairly common element, whereas rhenium is rare, technetium only occurs in trace quantities, and bohrium is entirely synthetic. The trends in group 7 follow...
chemists then correctly assumed that it was the ore of a distinct new element, named molybdenum for the mineral in which it was discovered. Peter Jacob...
three Group 5 elements occur naturally and share similar properties; all three are hard refractory metals under standard conditions. The fourth element, dubnium...
order. Silver is also the most thermally conductive element, and the most light reflecting element. Silver also has the unusual property that the tarnish...
periodic table of elements, hassium is a transactinide element, a member of the 7th period and group8; it is thus the sixth member of the 6d series of transition...
Sulfur has been known since antiquity, and oxygen was recognized as an element in the 18th century. Selenium, tellurium and polonium were discovered in...
to have discovered element 85 in minerals, and called the element dakine, but he was also mistaken. An attempt at discovering element 85 in 1939 by Horia...
naturally in ores, and it is the earth's 22nd most abundant element. Two prominent groups of ores from which it can be extracted are laterites and sulfide...
combined with group8 (iron, ruthenium, osmium, and hassium) and group 10 (nickel, palladium, platinum, and darmstadtium) and called group "VIIIB" in the...
boiling points of the carbon group tend to get lower with the heavier elements. Carbon, the lightest carbon groupelement, sublimes at 3825 °C. Silicon's...
referred to as the triels. Several group 13 elements have biological roles in the ecosystem. Boron is a trace element in humans and is essential for some...
or uranium compounds. The seventh member of group 18 is oganesson (Og), an unstable synthetic element whose chemistry is still uncertain because only...
that every other element of the group may be obtained by repeatedly applying the group operation to g or its inverse. Each element can be written as...
to osmium tetroxide and ruthenium tetroxide, its lighter octavalent group8element analogs. Because of the extreme cost and difficulty of producing hassium...
Extended periodic table Element 119 (Uue, marked here) in period 8 (row 8) marks the start of theorisations. An extended periodic table theorizes about...
The Fifth Element is a 1997 English-language French science fiction action film conceived and directed by Luc Besson, as well as co-written by Besson...
In group theory, the quaternion group Q8 (sometimes just denoted by Q) is a non-abelian group of order eight, isomorphic to the eight-element subset {...
been conducted to attempt the synthesis of element 119, which is likely to be the next member of the group; none were successful. However, ununennium...
Force ElementGroups (FEGs) are the operational capabilities of the Australian Defence Force (ADF) as organised into component groups. Capabilities are...
oxygen has an atomic number of 8, meaning each oxygen atom has 8 protons in its nucleus. Atoms of the same element can have different numbers of neutrons...
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