Bromine, atomic weight iodine compounds

Consider the proper placement of tellurium and iodine in the periodic table, as shown in Figure 1-3. Te has the heavier atomic weight. The chemical properties of tellurium are like those of selenium because both are semi-metallic elements that form compounds like those of sulfur. Iodine resembles bromine because these elements are nonmetallic halogens that form compounds like those of chlorine. Therefore, the order in the table cannot be based solely on atomic weight. 

Prepare a table showing the relation between chlorine, bromine, and iodine. The table should include the atomic weight, physical state, color, typical method of preparation, properties, and analogous compounds. 

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