41. Like selenium tetrachloride and tellurium tetrachloride, polonium tetrachloride forms and halogen complexes. 42. Excess tellurium deposited during this process can be dissolved off with sulfuric acid. 43. The distance between tellurium atoms across the layers is 3.95 ? 44. But at greater distance only the p orbital from tellurium can be detected. 45. Tellurium is mostly produced as a by-product of the processing of copper.46. The world production of tellurium is between 150 and 200 metric tons per year. 47. Microorganisms also absorb tellurium and emit dimethyl telluride. 48. Exposure to tellurium can produce unpleasant side effects. 49. Tellurium is produced mainly in the United States, Peru, Japan and Canada.50. Sometimes tellurium is not regarded as a metalloid.
