Argon
Named fictional place
Argon is a chemical element, a colorless, odorless gas that makes up about one percent of Earth's atmosphere.
Because it's chemically inert—it doesn't react with other elements—argon fills incandescent light bulbs and provides shielding gas in welding.
Its symbol is Ar and atomic number 18.
Unreactive periodic table element
- elementBasic substance or factor
- inertInactive, physically or chemically
- periodic tableSystematic display of elements
- valenceCombining power measure
nonreactive · monatomic · isotope · atomic mass · electron shell · ground state · spectral lines · stable
Heat-fusing metal pieces
- arc weldingElectric-heat metal fusion
- TIG weldingTungsten arc fusion process
- metal fabricationShaping raw alloys industrially
- sputteringParticle ejection from surfaces
crystal growth · electronics · annealing · heat treatment · metallurgy · stainless steel · torch · manufacturing
Measuring radiation to identify substances
- mass spectrometryMeasures ionic weight ratios
- chromatographyTechnique separating mixtures by differential migration
- laboratoryFacility for scientific investigation
- cryogenicsUltralow temperature science
laser · research · dating · geochronology · calibration · analytical chemistry · detector · reference standard
Emitting light when energized
- neon signsElectrified gas tube advertisements
- glowSteady, soft light
- blue-violetHue between blue and purple
- ionizationCharge acquisition process
plasma · tubes · electrical discharge · luminescence · advertising signs · decorative lighting · cathode · anode
Ample supply, overflowing
- troposphereLowest atmospheric layer
- atmospheric scienceStudy of Earth's atmosphere
- outgassingReleasing trapped gas
- volcanicOf fiery mountain origin
primordial · radiogenic · potassium-40 · geochemistry · terrestrial
noble gas
Unreactive periodic table element
- elementBasic substance or factor
- inertInactive, physically or chemically
- periodic tableSystematic display of elements
valence · nonreactive · monatomic · isotope · atomic mass · electron shell · ground state · spectral lines · stable · colorless
welding
Heat-fusing metal pieces
- arc weldingElectric-heat metal fusion
- TIG weldingTungsten arc fusion process
- metal fabricationShaping raw alloys industrially
sputtering · crystal growth · electronics · annealing · heat treatment · metallurgy · stainless steel · torch · manufacturing
spectrometry
Measuring radiation to identify substances
- mass spectrometryMeasures ionic weight ratios
- chromatographyTechnique separating mixtures by differential migration
- laboratoryFacility for scientific investigation
cryogenics · laser · research · dating · geochronology · calibration · analytical chemistry · detector · reference standard · experiment
fluorescent
Emitting light when energized
- neon signsElectrified gas tube advertisements
- glowSteady, soft light
- blue-violetHue between blue and purple
ionization · plasma · tubes · electrical discharge · luminescence · advertising signs · decorative lighting · cathode · anode · vacuum tube
abundance
Ample supply, overflowing
- troposphereLowest atmospheric layer
- atmospheric scienceStudy of Earth's atmosphere
- outgassingReleasing trapped gas
volcanic · primordial · radiogenic · potassium-40 · geochemistry · terrestrial
Argonchlorine gas
Reactive halogen in gaseous state
oxygen gas · hydrogen gas · ozone · nitrogen dioxide · ammonia