[DOC] [TLE] Strontium - Wikipedia [PAR] Strontium is a chemical element with symbol Sr and 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 it is exposed to air. 
Strontium has physical and chemical properties similar to those of its two... [DOC] [TLE] Strontium, Chemical Element - water, uses, elements, metal, gas ... [PAR] One of its radioactive isotopes is used in industry and medical studies. SYMBOL 
Sr. ATOMIC NUMBERM 38. ATOMIC MASS 87.62. FAMILY Group 2 (IIA) [DOC] [TLE] Chemical Elements.com - Strontium (Sr) [PAR] Non-Metals  Halogens ... Strontium at Chemical Elements.com. Basic Information 
| Atomic Structure | Isotopes | Related Links | Citing This Page ... Symbol: Sr [DOC] [TLE] Strontium - Royal Society of Chemistry [PAR] Element Strontium (Sr), Group 2, Atomic Number 38, s-block, Mass 87.62. 
Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and 
images. [DOC] [TLE] Strontium (Sr) - Chemical properties, Health and Environmental effects [PAR] Atomic number. 38. Atomic mass. 87.62 g.mol -1. Electronegativity according to 
Pauling. 1.0. Density. 2.6 g.cm-3 at 20C. Melting point. 769 C. Boiling point. [DOC] [TLE] Strontiumthe essentials [WebElements Periodic Table] [PAR] The finely divided metal ignites spontaneously in air. Volatile strontium salts 
impart an excellent crimson colour to flames, and ... Strontium-90 (90Sr) has a 
half-life of 28 years. ... The symbol used by Dalton for strontium is shown below. [
See History of Chemistry, Sir Edward Thorpe, volume 1, Watts & Co, London, 
1914.]. [DOC] [TLE] What is Strontium? - Site Index [PAR] Due to its extreme reactivity to air, this element always naturally occurs combined 
... The Atomic Number of this element is 38 and the Element Symbol is Sr. ... 
Strontium is classified as an "Alkaline Earth Metals" which are located in Group 2
... [DOC] [TLE] Strontium - Elements Database [PAR] Strontium (atomic number 38, symbol Sr) is an alkaline earth metal that is 
commercially available. Its chemical and physical properties are similar to that of
... [DOC] [TLE] strontium (Sr) | chemical element | Britannica.com [PAR] Strontium (Sr), chemical element, one of the alkaline-earth metals of Group 2 ... In 
its compounds strontium has an exclusive oxidation state of +2, as the Sr 2+ ion. 
... Strontium ferrites comprise a family of compounds of general formula SrFe xO... [DOC] [TLE] Facts About Strontium - Live Science [PAR] May 20, 2013 ... Properties, sources and uses of the element strontium. ... Atomic Symbol: Sr 
Atomic ... Its volatile salts can lend a beautiful crimson color to flames. ... The 
metal can be prepared by electrolysis of the fused chloride mixed with... [DOC] [TLE] Strontium - Chemicool [PAR] The chemical element strontium is classed as an alkali earth metal. It was 
discovered in .... It usually exists as a divalent ion, Sr2+, in its compounds. 
Strontium's... [DOC] [TLE] Chemistry of Strontium - Chemistry LibreTexts [PAR] Jul 22, 2015 ... Atomic Number: 38; Symbol: Sr; Atomic weight: 87.62; Electron shell ... Because 
of its propensity for oxidation and ignition, strontium is ... Finely powdered 
strontium metal is sufficiently reactive to ignite spontaneously in air. [DOC] [TLE] Naming Chemical Compounds & Writing Chemical Formulas [PAR] For Type I binary compounds the metal present can be found in either Group 1 or 
Group 2 on the periodic table. The naming system for ... Sulfide is derived from 
sulfur, whose symbol is S. Its oxidation state is -2. +1 -2 ... Strontium oxide  SrO. [DOC] [TLE] The Alkaline Earth Metals (Group 2) - 2012 Book Archive [PAR] Marie Curie was awarded the Nobel Prize in Chemistry in 1911 for its discovery. 
... Beryllium, Magnesium, Calcium, Strontium, Barium, Radium .... In the reverse 
of Equation 21.25, the oxides of Ca, Sr, and Ba react with CO 2 to regenerate the
... [DOC] [TLE]

Question: It's the chemical symbol for the metal Strontium
Answer: Sr