strontium sr stand

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  Strontium – Wikipedia

  202473 · Strontium ( lat. strontium) on alkuaine, jonka kemiallinen merkki on Sr ja järjestysluku 38. Se on maa-alkalimetalleihin kuuluva metalli, jota esiintyy runsaasti maankuoressa. Se on kuitenkin harvinaisempi kuin esimerkiksi kalsium tai magnesium, jotka ovat maa-alkalimetalleista yleisimmät. Strontium on normaaliolosuhteissa olomuodoltaan ...

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  Strontium – Chemie-Schule

  2024524 · Strontium ist ein chemisches Element mit dem Elementsymbol Sr und der Ordnungszahl 38. Im Periodensystem steht es in der 5. Periode sowie der 2. Hauptgruppe und gehört damit zu den Erdalkalimetallen. Es ist ein weiches (Mohshärte: 1,5) und sehr reaktionsfreudiges Metall.

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  Strontium (Sr) - Periodiska systemet

  Strontium är ett grundämne i det periodiska systemet med den kemiska beteckningen Sr och har atomnummer 38 med en atommassa på 87.621 u och den tillhör ämnesklassen alkalisk jordartsmetall.

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  References and Notes for Strontium ( Sr ) - NIST

  2023622 · References and Notes for Strontium ( Sr ) References and Notes for Strontium ( Sr )

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  Strontium - Examples

  2024426 · Strontium Formula Formula: Sr Composition: A single strontium atom. Bond Type: Strontium forms ionic bonds, influenced by its two valence electrons. Molecular Structure: Soft, silvery metal that tarnishes yellowish or pinkish in air. Electron Configuration: Thirty-eight electrons, with the configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s². …

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  Strontium (Sr) — Periodensystem der Elemente (PSE)

  Strontium (offizieller Name nach IUPAC) Gruppe: Erdalkalimetalle. IUPAC-Gruppe: 2 (alte Nomenklatur: Gruppe II A) Periode: 5. Masse (gerundet): 87,62 u (gerundet auf die fünf signifikanten Stellen)

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  Investigation of the strontium (Sr(II)) adsorption of 18-crown …

  2023109 · Abstract The development of efficient and reusable Sr 2+ adsorbent materials holds great significance for nuclear energy development and environmental protection. In order to address the low crown ether content in crown ether-based solid-phase adsorbents, this study employed condensation polymerization using di (aminobenzo)-18 …

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  Strontium (Sr) - Periodic Table

  Strontium is a chemical element of the periodic table with chemical symbol Sr and atomic number 38 with an atomic weight of 87.621 u and is classed as a alkaline earth metal.

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  Strontium - Minerals Education Coalition

  Strontium. Strontium (Sr) is the 15th most abundant element in the earth’s crust. Only two minerals, however—celestite and strontianite—contain strontium in sufficient quantities to make recovery practical, and these minerals are found predominantly in sedimentary rocks. Strontium is a silvery-yellow, metallic element.

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  Strontium (Sr) - Chemical properties, Health and ... - Lenntech

  Strontium is a soft, silver-yellow, alkaline-earth metal. It has three allotropic crystalline forms and in its physical and chemical properties it is similar to calcium and barium. Strontium reacts vigorously with water and quickly tarnishes in air, so it must be stored out of contact with air and water. Due to its extreme reactivity to air ...

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