The term 'Soft Metallic Element' can be summarized by the crossword solution of 'TIN'. TIN is a chemical element with the symbol Sn and atomic number 50. It is a soft, malleable, silvery-white metal that is found in many ores, including cassiterite, which is an ore of TIN. TIN is used in many alloys and most notably in the production of bronze. It is also used in the production of TIN cans and other containers.