Strontium is the 38th element on the Periodic table. Its symbol is Sr.
| Attributes | Values |
|---|
| rdf:type
| |
| rdfs:label
| |
| rdfs:comment
| - Strontium is the 38th element on the Periodic table. Its symbol is Sr.
- [Source] Strontium was a substance that comprised certain starship fuels during the Galactic Civil War. Strontium was present on Jakku in the Graveyard of Ships as a hazard to scavengers on the planet's surface. Breathing it in could be deadly. It possessed a red color in the sand, identifying it and warning those of its presence.
- Strontium is a metalic chemical element (atomic number 38). It is highly reactive and never exists in its metallic state in nature. It has few practical uses, but due to its chemical properties can be used in optical lenses and magnets.
- Strontium is a grey/silvery metal that is softer than calcium and even more reactive in water, with which strontium reacts on contact to produce strontium hydroxide and hydrogen gas. It burns in air to produce both strontium oxide and strontium nitride, but since it does not react with nitrogen below 380°C it will only form the oxide spontaneously at room temperature. It should be kept under a liquid hydrocarbon such as mineral oil or kerosene to prevent oxidation; freshly exposed strontium metal rapidly turns a yellowish color with the formation of the oxide. Finely powdered strontium metal will ignite spontaneously in air at room temperature. Volatile strontium salts impart a crimson color to flames, and these salts are used in pyrotechnics and in the production of flares.
|
| sameAs
| |
| dcterms:subject
| |
| Row 9 info
| |
| Row 8 info
| |
| Row 4 info
| |
| Row 10 title
| |
| Row 7 title
| |
| Row 1 info
| |
| Row 8 title
| |
| Row 4 title
| |
| Row 9 title
| |
| Row 2 info
| |
| Row 6 info
| |
| Row 1 title
| |
| Row 5 info
| |
| Row 2 title
| |
| Row 6 title
| |
| Row 10 info
| |
| Row 5 title
| |
| Row 3 info
| - 38(xsd:integer)
- named after the mineral it was discovered in-"strontianite". Strontianite is named after its place of discovery in Strontian, Scotland.
|
| Row 3 title
| |
| Row 7 info
| |
| dbkwik:chemistry/p...iPageUsesTemplate
| |
| dbkwik:starwars/pr...iPageUsesTemplate
| |
| Box Title
| - History
- General Properties
|
| Name
| |
| dbkwik:elements/pr...iPageUsesTemplate
| |
| dbkwik:exodus3000/...iPageUsesTemplate
| |
| Uses
| |
| Properties
| |
| Color
| |
| abstract
| - Strontium is a metalic chemical element (atomic number 38). It is highly reactive and never exists in its metallic state in nature. It has few practical uses, but due to its chemical properties can be used in optical lenses and magnets. In medicine, strontium ramelate is used in the treatment of osteoporosis, and it can be used as a tracer when studying neurotransmitters. It is also common in nutritional supplements that claim to have a benefit on bone health, although this is controversial. However, it is agreed that non-radioactive strontium is not very toxic and normal exposures pose no risk to human health. Because it is chemically very similar to Calcium, strontium can take the place of calcium in the structure of bones. This was a concern during the 1950s and early 1960s when atomic weapons were tested in the atmosphere - one of the fallout products was Strontium-90, a radioactive isotope which could be passed along in the food chain in milk from cows who had eaten grass contaminated with fallout. This resulted in an increased risk of bone cancer. This risk was one of the reasons why an atmospheric test ban was agreed to in the early 1960s.
- Strontium is a grey/silvery metal that is softer than calcium and even more reactive in water, with which strontium reacts on contact to produce strontium hydroxide and hydrogen gas. It burns in air to produce both strontium oxide and strontium nitride, but since it does not react with nitrogen below 380°C it will only form the oxide spontaneously at room temperature. It should be kept under a liquid hydrocarbon such as mineral oil or kerosene to prevent oxidation; freshly exposed strontium metal rapidly turns a yellowish color with the formation of the oxide. Finely powdered strontium metal will ignite spontaneously in air at room temperature. Volatile strontium salts impart a crimson color to flames, and these salts are used in pyrotechnics and in the production of flares. Natural strontium is a mixture of four radiostable isotopes, 84Sr (0.56%), 86Sr (9.86%), 87Sr (7.0%) and 88Sr (82.58%). Only 87Sr is radiogenic; it is produced by decay from the radioactive alkali metal 87Rb. Thus, there are two sources of 87Sr in any material: that formed in stars along with 84Sr, 86Sr and 88Sr, as well as that formed by radioactive decay of 87Rb. The ratio 87Sr/86Sr is the parameter typically reported in geologic investigations; ratios in minerals and rocks have values ranging from about 0.7 to greater than 4.0. Because strontium has an atomic radius similar to that of calcium, it readily substitutes for Ca in minerals. Sixteen unstable isotopes are known to exist. Of greatest importance are 90Sr with a half-life of 28.78 years and 89Sr with a half-life of 50.5 days.
- Strontium is the 38th element on the Periodic table. Its symbol is Sr.
- [Source] Strontium was a substance that comprised certain starship fuels during the Galactic Civil War. Strontium was present on Jakku in the Graveyard of Ships as a hazard to scavengers on the planet's surface. Breathing it in could be deadly. It possessed a red color in the sand, identifying it and warning those of its presence.
|
![[RDF Data]](/fct/images/sw-rdf-blue.png)