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The large size of strontium and barium plays a significant part in stabilising strontium complexes with polydentate macrocyclic ligands such as crown ethers: for example, while 18-crown-6 forms relatively weak complexes with calcium and the alkali metals, its strontium and barium complexes are much stronger.
Strontium (Sr) 38 Strontian: Scottish Gaelic via English proper name toponym Named after strontianite, the mineral. Strontianite itself was named after the town of Strontian where the mineral was found; Sròn an t-Sìthein literally means "nose ['point'] of the fairy hill". Yttrium (Y) 39 Ytterby: Swedish: proper name toponym
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Celestine (the IMA-accepted name) [6] or celestite [1] [7] [a] is a mineral consisting of strontium sulfate (Sr S O 4). The mineral is named for its occasional delicate blue color. Celestine and the carbonate mineral strontianite are the principal sources of the element strontium, commonly used in fireworks and in various metal alloys.
Strontium is a chemical element with symbol Sr and atomic number 38. Strontium may also refer to: Strontium Technology, a Singaporean manufacturing company; Strontium unit, a unit used to measure the amount of radioactivity from strontium-90; STRONTIUM, a code name used by Microsoft for advanced persistent threat Fancy Bear
About 8% by weight of cathode-ray tubes is strontium oxide, which has been the major use of strontium since 1970. [3] [4] Color televisions and other devices containing color cathode-ray tubes sold in the United States are required by law to use strontium in the faceplate to block X-ray emission (these X-ray emitting TVs are no longer in production).
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The first published English grammar was a Pamphlet for Grammar of 1586, written by William Bullokar with the stated goal of demonstrating that English was just as rule-based as Latin. Bullokar's grammar was faithfully modeled on William Lily's Latin grammar, Rudimenta Grammatices (1534), used in English schools at that time, having been ...