Concept in Definition ABC

It is known by the name of metal to those chemical elements that are mainly characterized by being excellent conductors of heat and electricity, for having a very important density and for remaining solid in normal temperatures.

Meanwhile, pure materials such as gold, silver and copper are called metals, but also to those alloys with metallic characteristics such as steel and the bronze.

Between the most recognizable properties that metals generally present, we find that most are grayish in color, although in some the color is of another denominator such as yellow in gold and reddish in copper. Also, a considerable density, solidity, brilliance, malleability, ductility, tenacity and conductivity of electricity and heat, are also counted as its characteristic properties.

In prehistoric times, metals were only used in their pure state (gold, silver, copper), although thanks to technological advances to which it was Little by little, man began to develop various techniques to obtain new metals from his minerals, heating them in a furnace with Coal. The first advance in this sense was achieved with the obtaining of bronze, product of using the

mineral of copper with forays of tin for example. Then iron would follow, still in times before Christ, which was widely used to make the first weapons such as swords.

The metal is one of the elements most used and required by the industry, since or because of his endurance or stability, among other issues, are usually ideal to protect certain structures against corrosion, to stabilize plastic materials, although it can also be used in other areas such as the medicine and chemistry, that is, not everything is reduced to industry, although it is the one that has the most metals.

Metal themes