europium
Sixty-third atomic number
Europium is a soft, silvery metallic element, one of the rare earth metals.
It has the atomic number 63 and is used in phosphors for color television screens and LED lights, producing red and blue fluorescence.
Europium compounds glow under ultraviolet light.
Element from fifty-seven series
- periodic tableSystematic display of elements
- gadoliniumLanthanide, atomic number sixty-four
- samariumRare-earth metal, element 62
- terbiumLanthanide element sixty-five
cerium · neodymium · dysprosium · holmium · erbium · thulium · ytterbium · lutetium
Heatless delayed light emission
- fluorescenceLight emitted after absorption
- CRTVacuum tube display
- cathode rayElectrons emitted in vacuum tubes
- displayPresentation for viewing
LED · backlighting · anti-counterfeiting · glow · light-emitting · quantum dots · luminescent · color television
Wavelength-based substance identification
- excitationStimulation of response
- luminescenceHeatless light emission
- opticalOf vision or light
- bioassayTest using living tissue
Weak magnetic susceptibility phenomenon
- magnetizationAcquiring magnetic polarity
- spinRapid rotation around axis
- susceptibilityLiability to influence
- cryogenicExtremely low temperature
Controlled fission apparatus
- control rodsNeutron-absorbing reactor components
- nuclearOf atomic energy
- fissionNuclear breakup releasing energy
- shieldingProtecting from harm
radioactive · activation · nuclear waste · criticality · moderator
lanthanide
Element from fifty-seven series
- periodic tableSystematic display of elements
- gadoliniumLanthanide, atomic number sixty-four
- samariumRare-earth metal, element 62
terbium · cerium · neodymium · dysprosium · holmium · erbium · thulium · ytterbium · lutetium · lanthanum
phosphorescence
Heatless delayed light emission
- fluorescenceLight emitted after absorption
- CRTVacuum tube display
- cathode rayElectrons emitted in vacuum tubes
display · LED · backlighting · anti-counterfeiting · glow · light-emitting · quantum dots · luminescent · color television · brightness
spectral analysis
Wavelength-based substance identification
- excitationStimulation of response
- luminescenceHeatless light emission
- opticalOf vision or light
paramagnetism
Weak magnetic susceptibility phenomenon
- magnetizationAcquiring magnetic polarity
- spinRapid rotation around axis
- susceptibilityLiability to influence
reactor
Controlled fission apparatus
- control rodsNeutron-absorbing reactor components
- nuclearOf atomic energy
- fissionNuclear breakup releasing energy
shielding · radioactive · activation · nuclear waste · criticality · moderator
- metalsaluminum, steel, copper, iron, gold
- lanthanidescerium, dysprosium, erbium, gadolinium, holmium
- molecular probesfluorescent dye, fluorescein, ethidium bromide, coumarin, radioactive tracers
- neutron absorbersboron, cadmium, hafnium, gadolinium, control rods
- rare earth mineralscerium, lanthanum, neodymium, samarium, gadolinium
- rare earthscerium, lanthanides, dysprosium, erbium, gadolinium