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Metal elements are usually good conductors of both electricity and heat. The dividing line between metals and non-metals is not hard and fast, thus the distinction between Post-transition metals and Metalloids is represented differently on different versions of the Periodic Table.etal elements are usually good conductors of both electricity and heat. The dividing line between metals and non-metals is not hard and fast, thus the distinction between Post-transition metals and Metalloids is represented differently on different versions of the Periodic Table.
Metal elements are usually good conductors of both electricity and heat. The dividing line between metals and non-metals is not hard and fast, thus the distinction between Post-transition metals and Metalloids is represented differently on different versions of the Periodic Table. Alkali metals. 2  The alkali metals make up group 1 of the Table, and comprise Li through Fr. They have very similar behavior and characteristics. 3  Hydrogen is group 1 but exhibits few characteristics of a metal and is often categorized with the nonmetals. 4  Alkaline earth metals.