strontium
Alkaline earth metal
Strontium is a soft, silvery metallic element that burns with a brilliant red flame—the characteristic color of red fireworks and emergency flares.
It sits in the alkaline earth metals alongside calcium and barium.
Radioactive strontium-90, a product of nuclear fallout, is hazardous because it accumulates in bones.
Naturally formed crystalline solid
- celestiteStrontium sulfate mineral
- oreMetal-bearing rock
- sedimentaryFormed from deposited material
- evaporiteMineral from dried brine
dating · geochronology · igneous · groundwater · geochemistry · extraction · mining · Scotland
Explosive light displays
- flaresPyrotechnic distress signals
- signal lightsIlluminated traffic control devices
- colorantSubstance that imparts hue
- combustionExothermic reaction with oxygen
emergency flares · road flares · celebration · Fourth of July · Diwali · New Year
Combined into one
- ionCharged atom or molecule
- cationPositively charged ion
- precipitationAtmospheric water deposit
- solubilityDissolving potential in liquid
reactivity · oxidation · reduction · synthesis · analytical chemistry · flame test · spectroscopy · electronegativity
Systematic display of elements
- alkaline earthGroup two elements
- celestiteStrontium sulfate mineral
- silvery-whitePale metallic sheen
- soft metalEasily deformed metallic substance
reactive · valence electrons · ductility · malleability · electropositive · tarnishing · yellow flame
Elemental variant by mass
- decayGradual organic breakdown
- half-lifePeriod for fifty-percent reduction
- beta radiationElectrons emitted during decay
- nuclear falloutDebris from atomic detonation
Chernobyl · Fukushima · contamination · radionuclide · dosimeter · hazardous · ionizing · nuclear testing
Enamel-covered chewing structures
- skeletalOf or like bones
- bone densityMineral content per volume
- mineralizationConversion to mineral form
- bioavailabilityFraction reaching active circulation
metabolism · dietary · trace element · coral · shells
mineral
Naturally formed crystalline solid
- celestiteStrontium sulfate mineral
- oreMetal-bearing rock
- sedimentaryFormed from deposited material
evaporite · dating · geochronology · igneous · groundwater · geochemistry · extraction · mining · Scotland
fireworks
Explosive light displays
- flaresPyrotechnic distress signals
- signal lightsIlluminated traffic control devices
- colorantSubstance that imparts hue
combustion · emergency flares · road flares · celebration · Fourth of July · Diwali · New Year
compound
Combined into one
- ionCharged atom or molecule
- cationPositively charged ion
- precipitationAtmospheric water deposit
solubility · reactivity · oxidation · reduction · synthesis · analytical chemistry · flame test · spectroscopy · electronegativity · ionic bonding
periodic table
Systematic display of elements
- alkaline earthGroup two elements
- celestiteStrontium sulfate mineral
- silvery-whitePale metallic sheen
soft metal · reactive · valence electrons · ductility · malleability · electropositive · tarnishing · yellow flame
isotope
Elemental variant by mass
- decayGradual organic breakdown
- half-lifePeriod for fifty-percent reduction
- beta radiationElectrons emitted during decay
nuclear fallout · Chernobyl · Fukushima · contamination · radionuclide · dosimeter · hazardous · ionizing · nuclear testing · environmental monitoring
teeth
Enamel-covered chewing structures
- skeletalOf or like bones
- bone densityMineral content per volume
- mineralizationConversion to mineral form
bioavailability · metabolism · dietary · trace element · coral · shells
- elementsoxygen, hydrogen, carbon, helium, nitrogen
- metalsaluminum, steel, copper, iron, gold
- main group elementshydrogen, helium, lithium, beryllium, boron
- Alkaline Earthsbarium, beryllium, calcium, magnesium, radium
- ChernobylPripyat, exclusion zone, meltdown, nuclear disaster, explosion
- electrolytessodium, potassium, calcium, magnesium, chloride