lanthanides
Fifteen metallic elements
The lanthanides are a series of fifteen metallic elements with atomic numbers 57 through 71, from lanthanum to lutetium.
Along with the actinides, they form the two rows typically shown below the main periodic table.
They share similar chemical properties and are sometimes called rare earth elements, though most aren't particularly rare.
Atomic number fifty-eight
- neodymiumRare-earth metallic element
- europiumElement sixty-three
- gadoliniumLanthanide, atomic number sixty-four
- terbiumLanthanide element sixty-five
dysprosium · holmium · erbium · ytterbium
Strong rare-earth permanent attractors
- phosphorsSubstances emitting stored light
- LEDsSemiconductor light sources
- lasersAmplified coherent light sources
- fiber opticsLight-carrying cable technology
hard drives · batteries · touchscreens · camera lenses · night vision · catalytic converters · wind turbines · electric vehicles
Metallic elements, misleadingly named
- trivalentHaving valence of three
- luminescenceHeatless light emission
- paramagnetismWeak magnetic susceptibility phenomenon
- complexesRelated buildings or neuroses
Substances emitting stored light
- fluorescent lightingElectric lamps using gas discharge
- excitationStimulation of response
- afterglowLingering light or feeling
Removing unwanted elements
- supply chainProduct delivery infrastructure
- extractionAct of removing
cerium
Atomic number fifty-eight
- neodymiumRare-earth metallic element
- europiumElement sixty-three
- gadoliniumLanthanide, atomic number sixty-four
terbium · dysprosium · holmium · erbium · ytterbium
neodymium magnets
Strong rare-earth permanent attractors
- phosphorsSubstances emitting stored light
- LEDsSemiconductor light sources
- lasersAmplified coherent light sources
fiber optics · hard drives · batteries · touchscreens · camera lenses · night vision · catalytic converters · wind turbines · electric vehicles · speakers
rare earths
Metallic elements, misleadingly named
- trivalentHaving valence of three
- luminescenceHeatless light emission
- paramagnetismWeak magnetic susceptibility phenomenon
phosphors
Substances emitting stored light
- fluorescent lightingElectric lamps using gas discharge
- excitationStimulation of response
- afterglowLingering light or feeling
refining
Removing unwanted elements
- supply chainProduct delivery infrastructure
- extractionAct of removing