Like other groups, the members of this family show patterns in electron configuration, especially in the outermost shells, resulting in trends in chemical behavior.
In the older group naming systems, this group was combined with group 9 (cobalt, rhodium, iridium, and meitnerium) and group 10 (nickel, palladium, platinum, and darmstadtium) 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).
Group 8 (current IUPAC) should not be confused with "group VIIIA" in the CAS system, which is group 18 (current IUPAC), the noble gases.
While groups (columns) of the periodic table are sometimes named after their lighter member (as in "the oxygen group" for group 16), the term iron group does not mean "group 8". 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.
|Group 8 in the periodic table|
26 Transition metal
44 Transition metal
76 Transition metal
108 Transition metal
|Z||Element||No. of electrons
|26||iron||2, 8, 14, 2||1811 K
|44||ruthenium||2, 8, 18, 15, 1||2607 K
|1844||K. E. Claus|
|76||osmium||2, 8, 18, 32, 14, 2||3306 K
|1803||S. Tennant and|
W. H. Wollaston
|108||hassium||2, 8, 18, 32, 32, 14, 2||—||—||1984||P. Armbruster and|
The first three elements are hard silvery-white metals. Hassium has not been isolated in macroscopic pure form, and its properties have not been conclusively observed.
G8 is the Group of Eight, an international forum for eight industrialized nations, also known as the G7+1.
G8, G08, G.VIII, G.8, G-8, or Group of Eight may also refer to:
Group of Eight (music), a Spanish group close to the Generation of '27
Group of Eight (Australian universities), an association of Australian universities
G-8 (character), a fictional aviator
Abitur after twelve years, often abbreviated "G8", a secondary education system in Germany
G-08 (Michigan county highway)
G8 star, a subclass of G-class stars
County Route G8 (California), a route from Santa Clara County to San Jose, California, USA
EMD G8, a diesel locomotive and derivatives thereof
Fiat G.8, a 1934 Italian military utility aircraft
Gabardini G.8, a 1923 Italian fighter and military trainer aircraft
Gotha G.VIII, a 1918 German bomber aircraft
Pontiac G8, a full-size automobile from the Pontiac lineup of GM
Gewehr-8 or G-8, the designation of the Heckler & Koch HK21 by the German Army, German Navy and the Federal Police
IATA airline designator for Air Service Gabon
IATA airline designator for Enkor
IATA airline designator for Go Air
IATA airline designator for Gujarat Airways (India)
NATO code for the Assistant Chief-of-Staff, Finance
G08, Intracranial and intraspinal phlebitis and thrombophlebitis ICD-10 code
The Contadora group and the Contadora support group, taken as a wholeGroup 8
Group 8 may refer to:
Group 8 element, a series of elements in the Periodic Table
Group 8 Rugby League, a rugby league competition
Group 8 (Sweden), a feminist movement in Sweden
Group VIII, former nomenclature for the noble gasesHassium
Hassium is a synthetic chemical element with symbol Hs and atomic number 108. It is named after the German state of Hesse. It is a synthetic element and radioactive; the most stable known isotope, 270Hs, has a half-life of approximately 10 seconds.
In the periodic table of the elements, it is a d-block transactinide element. Hassium is a member of the 7th period and belongs to the group 8 elements: it is thus the sixth member of the 6d series of transition metals. Chemistry experiments have confirmed that hassium behaves as the heavier homologue to osmium in group 8. The chemical properties of hassium are characterized only partly, but they compare well with the chemistry of the other group 8 elements. In bulk quantities, hassium is expected to be a silvery metal that reacts readily with oxygen in the air, forming a volatile tetroxide.Index of chemistry articles
Chemistry (from Egyptian kēme (chem), meaning "earth") is the physical science concerned with the composition, structure, and properties of matter, as well as the changes it undergoes during chemical reactions.Below is a list of chemistry-related articles. Chemical compounds are listed separately at list of organic compounds, list of inorganic compounds or list of biomolecules.
|Periodic table forms|
|Sets of elements|
Group 8 elements