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For Sn (IV), all four halides are well known: SnF 4, SnCl 4, SnBr 4, and SnI 4. The three heavier members are volatile molecular compounds, whereas the tetrafluoride is polymeric. Chat, send Snaps, explore Stories, and try Lenses on desktop, or download the app on mobile! See how to connect & create with friends on Snapchat, wherever you are. A tin element refers to a soft, silvery-white metal with the symbol Sn and atomic number 50. Tin belongs to group 14 of the periodic table and is widely used for making alloys, tin cans, and protective coatings. 3 History The name derives from the Anglo-Saxon tin of unknown origin. The symbol Sn is derived from Latin stannum for alloys containing lead. The element was known in prehistoric times. The symbol Sn comes from the Latin word “Stannum”, which means tin. That’s why, even though it’s called “tin” in English, we use Sn to represent it in scientific writing and chemical equations. Tin is a chemical element of the periodic table with chemical symbol Sn and atomic number 50 with an atomic weight of 118.711 u and is classed as a post-transition metal. When heated in air, tin forms Sn 2, which is feebly acid, forming stannate salts with basic oxides. The most important salt is the chloride, which is used as a reducing agent and as a mordant in calico … Element Tin (Sn), Group 14, Atomic Number 50, p-block, Mass 118.710. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.