A metallic element of the calcium group, always naturally occurring combined, as in the minerals strontianite, celestite, etc. It is isolated as a yellowish metal, somewhat malleable but harder than calcium. It is chiefly employed (as in the nitrate) to color pyrotechnic flames red. Symbol Sr. Atomic weight 87.3.
A radioactive isotope of strontium produced by certain nuclear reactions, and constituting one of the prominent harmful components of radioactive fallout from nuclear explosions; also called radiostrontium. It has a half-life of 28 years.
primarily participates in bone metabolism and tends to compete with Vitamin D and calcium, which it closely resembles, for utilization and absorption purposes. There are no known symptoms of strontium toxicity or deficiency in humans. Strontium is poorly absorbed from the diet and plasma concentration is very low. Sources of strontium are usually found in water, dairy products, and fruits and vegetables.
CAS Number: 7440-24-6. A silvery-white metal that rapidly turns yellow when it oxidizes. It is used in fireworks, signal flares and in tracer bullets. Also added to alloys of tin and lead to add hardness and durability. Strontium usually occurs as a mixture of four stable isotopes. 26 other less common, yet unstable isotopes exist, the most harmful of which is 90Sr. 90Sr is the product of nuclear fallout and can cause health problems. Chemical formula = Sr. Molecular weight = 87.62 g/mol.
A silvery-white metallic element, chemically similar to calcium.
A chemical element with atomic number 38. Strontium was discovered in 1808 by Humphry Davy who successfully isolated it after electroyzing lime and mercury. The name strontium is derived from Strontian, a town in Scotland. Symbol: Sr. Related to alkaline earth metals.
a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite
a silvery, soft metal that rapidly turns yellow in air. Sr-90 is one of the radioactive fission materials created within a nuclear reactor during its operation. Stronium-90 emits beta particles during radioactive decay.
Naturally occurring element with 38 protons in its nucleus. Some manmade isotopes of strontium are radioactive (e.g., strontium-89, strontium-90)
A radioactive isotope used to treat bone cancer. A small dose is injected into the body. It finds it way into the bones where it delivers a high local dose of radiotherapy.
Precious metal used for very strong magnets in loudspeakers. Allows a compact design and high-quality sound reproduction
Strontium is a naturally occurring radioactive element which is used to find out the age of rock and sediments.
This alkaline metal is an alternative to Barium used to join with Iron in the make up of ferrite magnets. (See also Barium and Ferrite).
A metal often used in a radioactive form for imaging tests or as a treatment for cancer.
Strontium (IPA: ) is a chemical element in the periodic table that has the symbol Sr and the atomic number 38. An alkaline earth metal, strontium is a soft silver-white or yellowish metallic element that is highly reactive chemically. The metal turns yellow when exposed to air.