Group 8 element
Template:Periodic table (group 8) 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] 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 8" is the modern standard designation for this group, adopted by the IUPAC in 1990.[2]per shell]] !! M.P. || B.P. || Year of
discovery !! Discoverer
|-
| 26 || iron || 2, 8, 14, 2 || 1811 K
1538 °C || 3134 K
2862 °C || <3000 BCE || Unknown
|-
| 44 || ruthenium || 2, 8, 18, 15, 1 || 2607 K
2334 °C|| 4423 K
4150 °C || 1844 || K. E. Claus
|-
| 76 || osmium || 2, 8, 18, 32, 14, 2 || 3306 K
3033 °C || 5285 K
5012 °C || 1803 || S. Tennant and
W. H. Wollaston
|-
| 108 || hassium || 2, 8, 18, 32, 32, 14, 2 || — || — || 1984 || P. Armbruster and
G. Münzenberg
|}
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.
References
- ^ Leigh, G. J. Nomenclature of Inorganic Chemistry: Recommendations 1990. Blackwell Science, 1990. ISBN 0-632-02494-1.
- ^ Cite error: The
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