Periodic Table Guide
Rhenium (Re) has atomic number 75 and is classified as a transition metal. It sits in Group 7, period 6 of the periodic table. Its practical relevance includes nickel-base superalloys, petroleum catalysts, thermocouples and high-temperature aerospace components.
Quick facts
Position in the periodic table
Transition metals occupy the d-block and are central to structural alloys, catalysis, electrical systems and high-temperature engineering. Many display multiple oxidation states and form useful intermetallics or complex alloys.
Rhenium belongs to period 6. Its position helps explain recurring trends such as atomic size, bonding behavior, oxidation states and the way it interacts with neighboring elements.
Why Rhenium matters
In engineering and technology, rhenium is associated with nickel-base superalloys, petroleum catalysts, thermocouples and high-temperature aerospace components. The importance of the element may come from the pure element itself, from compounds containing it, or from its role as an alloying, electronic, catalytic or nuclear material.
Engineering and scientific context
Material behavior should never be inferred from the element name alone. Purity, isotope composition, crystal structure, processing history, temperature and the surrounding chemical environment can all change performance. In alloys and compounds, the contribution of rhenium depends on concentration and interaction with the other constituents.
Safety and handling
The hazards associated with Rhenium depend on its physical form, purity, compounds, process temperature and exposure route. Engineering decisions should use the applicable safety data sheet and project-specific risk assessment.
Related elements
Manganese (Mn) · Technetium (Tc) · Bohrium (Bh) · Tungsten (W)
Reference sources
For authoritative element data and current standard atomic-weight guidance, consult the Royal Society of Chemistry Periodic Table and the IUPAC Periodic Table of the Elements.
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