thulium
Rare earth element
Thulium is a silvery-gray metallic element, one of the rare earth metals in the lanthanide series.
It has atomic number 69 and symbol Tm.
Thulium is among the least abundant of the rare earths and has limited practical applications, though it finds some use in portable X-ray devices and certain lasers.
Element from fifty-seven series
- periodic tableSystematic display of elements
- holmiumLanthanide element sixty-seven
- erbiumAtomic number sixty-eight
- ytterbiumAtomic number seventy metal
lutetium · dysprosium · terbium · europium · gadolinium · samarium · neodymium · scandium
Pale metallic sheen
- lustrousSoftly bright, reflective
- malleableCapable of being shaped
- ductileAble to deform permanently
- softYielding to touch
metallic · paramagnetic · electropositive · oxidation state · tarnishing · grayish · workable · stable
Movable diagnostic imaging equipment
- medical imagingCreating pictures inside bodies
- nuclear medicineHealthcare using radioactive materials
- phosphorsSubstances emitting stored light
- dopingProhibited athletic drug use
fiber optics · fluorescence · cancer treatment · brachytherapy
Scandinavian country, capital Stockholm
- spectroscopyStudy of light-matter interaction
- nomenclatureSystem of specialized terms
- isolationComplete separation from others
- identificationEstablishing who someone is
Extracting earth's resources
- separationState of being apart
- refiningRemoving unwanted elements
- reductionMaking something smaller
- electrolysisCurrent-induced ionic separation
lanthanide
Element from fifty-seven series
- periodic tableSystematic display of elements
- holmiumLanthanide element sixty-seven
- erbiumAtomic number sixty-eight
ytterbium · lutetium · dysprosium · terbium · europium · gadolinium · samarium · neodymium · scandium · yttrium
silvery
Pale metallic sheen
soft · metallic · paramagnetic · electropositive · oxidation state · tarnishing · grayish · workable · stable · dense
portable X-ray
Movable diagnostic imaging equipment
- medical imagingCreating pictures inside bodies
- nuclear medicineHealthcare using radioactive materials
- phosphorsSubstances emitting stored light
doping · fiber optics · fluorescence · cancer treatment · brachytherapy
Sweden
Scandinavian country, capital Stockholm
- spectroscopyStudy of light-matter interaction
- nomenclatureSystem of specialized terms
- isolationComplete separation from others
mining
Extracting earth's resources
- separationState of being apart
- refiningRemoving unwanted elements
- reductionMaking something smaller