Bismuth is a chemical element with symbol B1 and atomic number 83. It is a red-white main metal group. In the past, bismuth was often confused with tin or lead because it shares many properties with it. In 1753, French scientist Claude François Geoffroy succeeded in separating bismuth from lead. The name is from the German Wismut, which is probably a bunch of white mass. Bismuth is a fragile heavy metal that is non-existent of the group. In addition, bismuth is the most diamagnetic. It has very low electrical conductivity and exhibits the highest Hall effect of all metals. Bismuth burns to form a clear blue / green flame and is used with a tin alloy for coating on dovetail blades of jet engines. Fireworks are sometimes enriched with bismuth to make beautiful color effects.