what is tin antimony?
Chemical Background and Properties of Antimony. Antimony is a chemical element that is recognized by its distinctive atomic symbol of Sb. This atomic symbol is derived from the Latin name for antimony, stibium. The atomic number of antimony is 51 and its atomic weight of 121.8g/mol. Classified as a metalloid, you can spot antimony on the periodic table next to metalloid neighbors arsenic (As) and tellurium (Te). A metalloid is a chemical element that has a mixture of properties between a metal and nonmetal.