Form and structure
Metals are shiny and lustrous, at least when freshly prepared, polished, or fractured. Sheets of … See more

An alloy is a substance having metallic properties and which is composed of two or more elements at least one of which is a metal. An alloy … See more

Metals can be categorised according to their physical or chemical properties. Categories described in the subsections below include ferrous and non-ferrous metals; brittle … See more

The role of metallic elements in the evolution of cell biochemistry has been reviewed, including a detailed section on the role of See more

The elements that form metallic structures under ordinary conditions are shown in yellow on the periodic table below. The remaining elements … See more

Formation
This sub-section deals with the formation of periodic table elemental metals since these form the basis of metallic materials, as defined in this … See more

Prehistory
Copper, which occurs in native form, may have been the first metal discovered given its distinctive … See more