noble metals
Unreactive precious metals
Noble metals resist corrosion and oxidation, remaining chemically stable where other metals tarnish or rust.
Gold, platinum, and silver are the most familiar examples—prized for jewelry and electronics precisely because they don't react with air or moisture.
The term parallels noble gases, which share this chemical aloofness.
Gold's status as a noble metal explains why ancient artifacts survive intact.
Dense precious silvery metal
- goldElement seventy-nine
- palladiumElement forty-six, catalytic metal
- rhodiumPlatinum group element
- iridiumElement seventy-seven
ruthenium · osmium · silver · rhenium · copper · mercury · periodic table · atomic number
Withstands oxidation and decay
- nonreactiveChemically inactive substance
- electronegativityAtomic electron attraction strength
- aqua regiaAcid dissolving gold
- rust-proofResistant to oxidation
Precious metal in bulk
- coinsMetal money units
- barsRods, taverns, or measures
- ingotsCast metal bars
- commoditiesTradeable raw materials
portfolio · diversification · hedge · inflation hedge · futures · spot price · troy ounce · vault
Precious metal artisan
- silversmithMaker of silver objects
- platinum ringJewelry of dense white metal
- necklaceNeck-worn ornament
- braceletOrnamental wrist band
earrings · pendant · brooch · tiara · crown · wedding band · gemstone setting · karat
Exhaust system emission reducers
- catalysisAccelerating reactions without consumption
- electroplatingElectrically depositing metal layers
- dentistryOral healthcare profession
- medical devicesTools for patient care
laboratory equipment · aerospace · automotive · fuel cells · chemical processing · glass production · crucibles · thermocouples
Ability to carry current
- electronsNegative charges in atoms
- currentDirected flow of charge
- circuitryInterconnected electronic components
- electrodesElectrical contact points
contacts · connectors · wiring · semiconductors · resistance · soldering · plating · electronics
platinum
Dense precious silvery metal
iridium · ruthenium · osmium · silver · rhenium · copper · mercury · periodic table · atomic number · chemistry
corrosion-resistant
Withstands oxidation and decay
- nonreactiveChemically inactive substance
- electronegativityAtomic electron attraction strength
- aqua regiaAcid dissolving gold
bullion
Precious metal in bulk
commodities · portfolio · diversification · hedge · inflation hedge · futures · spot price · troy ounce · vault · reserves
goldsmith
Precious metal artisan
- silversmithMaker of silver objects
- platinum ringJewelry of dense white metal
- necklaceNeck-worn ornament
bracelet · earrings · pendant · brooch · tiara · crown · wedding band · gemstone setting · karat · hallmark
catalytic converters
Exhaust system emission reducers
- catalysisAccelerating reactions without consumption
- electroplatingElectrically depositing metal layers
- dentistryOral healthcare profession
medical devices · laboratory equipment · aerospace · automotive · fuel cells · chemical processing · glass production · crucibles · thermocouples · spark plugs
electrical conductivity
Ability to carry current
- electronsNegative charges in atoms
- currentDirected flow of charge
- circuitryInterconnected electronic components
electrodes · contacts · connectors · wiring · semiconductors · resistance · soldering · plating · electronics · circuit boards
- element groupshalogens, lanthanides, actinides, metalloids, nonmetals
- alchemyalchemy, alchemist, philosopher's stone, transmutation, elixir
- corrosionrust, rusting, corrosion, iron oxide, galvanic corrosion
- Nanophotonicshotspots, nanolasers
noble metalsbase metals
Non-precious metallic elements
alkali metals · industrial metals · ferrous metals · scrap metal
noble, nobility, metals, ennoble, nobleman, nobles, nobly, ennobled, noblemen