Iron group
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Position in the periodic table
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| group | 8th |
| period | |
| 4th |
26 feet |
| 5 |
44 Ru |
| 6th |
76 Os |
| 7th |
108 ms |
According to the inorganic nomenclature of IUPAC, the elements of group 8 are collectively referred to as the iron group of the periodic table .
The group contains the elements iron , ruthenium , osmium and hassium , which all belong to the heavy metals .
Hassium also belongs to the group of transuranic elements , a group name not included in the nomenclature.
An older definition of the iron group that is still common today includes the chemical elements iron, cobalt and nickel . In older representations of the periodic table, they were included in group VIIIA (IUPAC 1970) or VIIIB (Demming 1923). To avoid confusion, these older definitions should no longer be used.
Together with the platinum metals ruthenium , rhodium , palladium , osmium , iridium and platinum , the three metals iron, cobalt and nickel are also included in the nine-element iron-platinum group .
- The metals
Iron, electrolytic, 99.97% +
Ruthenium bar, 99.99%
Osmium crystals, ≈99.99%
