What are the two main components of metal?

Answer 1

Copper

Traditionally, the term metal (from the Greek word metallon) has been applied to a chemical element that has a shiny surface and is a good conductor of heat and electricity. These properties, however, can vary from one metal to the next. More recently, chemists have recognized that the main distinguishing features of a metal are (a) the ability of its atoms to lose some of their outermost electrons to form cations, and (b) the bonding of its atoms by what are called metallic bonds.

Metals form one of three groups of elements-the other two being nonmetals and metalloids. These groups are distinguished by their ionization and bonding properties. On the Periodic Table, a diagonal line drawn from boron (B) to polonium (Po) separates the metals from the nonmetals. Elements on this line are metalloids, sometimes called semi-metals; elements to the lower left are metals; elements to the upper right are nonmetals. In nature, nonmetals are more abundant than metals, but most elements in the periodic table are metals. Some well-known metals are aluminum, calcium, copper, gold, iron, lead, magnesium, platinum, silver, titanium, uranium, and zinc.

Metals and their alloys are extremely useful for both aesthetic and practical purposes. While some are used for jewelry and works of art, many serve as construction materials for buildings, bridges, transportation vehicles, and industrial machinery. Some, such as copper, are used as conductors in electrical wiring; others, such as platinum and palladium, are catalysts for chemical reactions. Tungsten is used in the filaments of incandescent light bulbs; uranium and plutonium are used in nuclear weapons and nuclear power plants. Moreover, metal ions play significant roles in biological processes, such as the functions of enzymes, the transport of oxygen, and the health of teeth and bones.

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