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The Periodic Table of Elements tell and show us alot of useful stuff. The most striking similarities shared by the 24 elements in question are that they are all metals and that most of them are hard, strong, and lustrous, have high melting and boiling points, and are good conductors of heat and electricity. Many of the elements in the world are technologically important: titanium, iron, nickel, and copper, for example, are used structurally and in electrical technology.
