View source for Group 9 element



{| align="right" style="margin:0 0 1em 1em;"
! [[Periodic table group|Group]]
! '''9'''
|-
! [[Periodic table period|Period]]
|-
! [[Period 4 element|'''4''']]
| style="text-align:center; background-color:#ffc0c0; color:black; border:1px solid black;" | 27<br />&nbsp;[[Cobalt|Co]]&nbsp;
|-
! [[Period 5 element|'''5''']]
| style="text-align:center; background-color:#ffc0c0; color:black; border:1px solid black;" | 45<br />&nbsp;[[Rhodium|Rh]]&nbsp;
|-
! [[Period 6 element|'''6''']]
| style="text-align:center; background-color:#ffc0c0; color:black; border:1px solid black;" | 77<br />&nbsp;[[Iridium|Ir]]&nbsp;
|-
! [[Period 7 element|'''7''']]
| style="text-align:center; background-color:#ffc0c0; color:black; border:1px dashed black;" | 109<br />&nbsp;[[Meitnerium|Mt]]&nbsp;
|}

In modern [[IUPAC]] nomenclature, '''Group 9''' of the [[periodic table]] contains the [[Chemical element|elements]]  [[cobalt]]  ('''Co'''), [[rhodium]]  ('''Rh'''), [[iridium]]  ('''Ir'''), and [[meitnerium]]  ('''Mt'''). These are all [[d-block]] [[transition metals]]. All known [[isotopes]] of Mt are radioactive with short half-lives, and it is not known to occur in nature; only minute quantities have been synthesized in laboratories.

{{inorganic-compound-stub}}

{|style="width: 80%; text-align: center;" border="1" cellpadding="2" 
|style="vertical-align: top;" colspan="1" rowspan="3">|Explanation of right side periodic table slice:
|bgcolor="#ffc0c0"|[[Transition metal]]s
|| atomic number in <font color="black">black</font> are solids
|style="border:solid 1px black;padding:1px;"|solid borders are older than the [[Earth]] ([[Primordial element]]s)
|style="border:dashed 1px black;padding:1px;"|dashed borders have no isotopes older than the earth
|}

==Applications==
*Alloys with other metals, primarially to add corrosion and wear resistance
*Industrial Catalysts
*[[Superalloys]]
*Electrical Components

<br/>
{{PeriodicTablesFooter}} [[Category:Periodic table]] <br/>

[[Category:Chemical element groups|Group 09]]

[[ar:عناصر المجموعة التاسعة]]
[[ca:Grup 9 de la taula periòdica]]
[[cs:9. skupina]]
[[de:Cobaltgruppe]]
[[es:Elementos del grupo 9]]
[[eo:Elemento de grupo 9]]
[[fr:Éléments du groupe 9]]
[[ko:9족 원소]]
[[it:Elementi del gruppo 9]]
[[lmo:Grupp 9 de la taula periòdica]]
[[ja:第9族元素]]
[[sk:9. skupina]]
[[sr:9. група хемијских елемената]]
[[sh:9. grupa hemijskih elemenata]]
[[th:ธาตุหมู่ 9]]
[[vi:Nhóm nguyên tố 9]]

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