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31. Antimony is like a nonmetal in that it is a brittle, crystalline solid, has poor electrical and heat conductivity, and has a low boiling point. However, it is also like a metal because of its shiny silver appearance and ability to form alloys. Into which group should antimony be placed? 32.
Metals and non-metals differ tremendously in their physical and chemical characteristics. On the periodic table, the metals are separated from nonmetals by a zigzag line which passes through carbon, phosphorus, selenium, iodine and radon. These elements and those to the right of them are nonmetals.The elements just to the left of the line are metalloids or semimetals.n the periodic table, the metals are separated from nonmetals by a zigzag line which passes through carbon, phosphorus, selenium, iodine and radon. These elements and those to the right of them are nonmetals. The elements just to the left of the line are metalloids or semimetals.