Group 9 element

In modern IUPAC nomenclature, Group 9 of the periodic table contains the 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.

Applications

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

عناصر المجموعة التاسعة Grup 9 de la taula periòdica 9. skupina Cobaltgruppe Elementos del grupo 9 Elemento de grupo 9 Éléments du groupe 9 9족 원소 Elementi del gruppo 9 Grupp 9 de la taula periòdica 第9族元素 9. skupina 9. група хемијских елемената 9. grupa hemijskih elemenata ธาตุหมู่ 9 Nhóm nguyên tố 9