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A metal (from Ancient Greek μέταλλον (métallon) 'mine, quarry, metal') is a material that, when freshly prepared, polished, or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well. Metals are typically ductile (can be drawn into wires) and malleable (they can be hammered into thin sheets).
- Metal (Disambiguation)
People with the name. Tamara Metal (1933–2022), Israeli...
- Metallic Bond
Metallic bonding is a type of chemical bonding that arises...
- Metalloid
A metalloid is a type of chemical element which has a...
- Metal (Disambiguation)
- The Ways That Metals Are Alike
- Use of Metals
- Alloys of Metals
- Metals in Chemistry
- Metals in History
- Metals in Astronomy
- Biological Role in Humans
Most metals are hard, shiny, they feel heavy and they melt only when they are heated at very high temperatures . Lumps of metal will make a bell-like sound when they are hit with something heavy (they are sonorous).Heat and electricity can easily pass through a metal (it is conductive). A lump of metal can be beaten into a thin sheet (it is malleab...
Metals are very useful to people. They are used to make tools because they can be strong and easy to shape. Iron and steel have been used to make bridges, buildings, or ships. Some metals are used to make items like coins because they are hard and will not wear away quickly. For example, copper (which is shiny and red in color), aluminium (which is...
Many things that are made of metals may, in fact, be made of mixtures of at least one metal with either other metals, or with non-metals. These mixtures are called alloys. Some common alloys are: 1. Steel (iron and carbon) (Carbon is a non-metal) 2. Brass (copper and zinc) 3. Bronze (copper and tin) 4. Duralumin (aluminium and copper) 5. Gunmetal (...
In chemistry, metal is a word for a group of chemical elements that have certain properties. It is easy for the atoms of a metal to lose an electron and become positive ions, or cations. In this way, metals are not like the other two kinds of elements - the nonmetals and the metalloids. Most elements on the periodic tableare metals. On the periodic...
The use of metals is said to be one of the things that makes people different from animals. Before they used metals, people made tools from stones, wood, and animal bones. This is now called the Stone Age. No-one knows when the first metal was found and used. It was probably what is called native copper, which is sometimes found in large lumps on t...
In astronomy, a metal is any element other than hydrogen or helium. This is because these two elements (and sometimes lithium) are the only ones that form outside stars. In the sky, a spectrometer can see the signs of metals and show the astronomer the metals in a star.
In humans, some metals are essential nutrients like iron, cobalt, and zinc. Some metals can be harmless such as ruthenium, silver, and indium. Some metals can be toxic in large amounts. Other metals such as cadmium, mercury, and lead, are very poisonous. Sources of metal poisoning include mining, tailings, industrial wastes, agricultural runoff, oc...
Ludwigsburg Palace is a 452-room complex of 18 buildings in Ludwigsburg, Baden-Württemberg, Germany. It is the largest palatial estate in the country and has been called the " Versailles of Swabia ". Eberhard Louis, Duke of Württemberg, began construction of the palace in 1704. Charles Eugene, the son of his successor, completed it and ...
Wikimedia Commons has media related to Metals. This page lists metals, with subdivisions for alloys and specialised subsets of metal and metal-based compounds.
In chemistry, a transition metal (or transition element) is a chemical element in the d-block of the periodic table (groups 3 to 12), though the elements of group 12 (and less often group 3) are sometimes excluded. The lanthanide and actinide elements (the f-block) are called inner transition metals and are sometimes considered to be transition ...
Definitions. List of heavy metals based on density. Origins and use of the term. Criticism. Popularity. Biological role. Toxicity. Environmental heavy metals. Nutritionally essential heavy metals. Other heavy metals. Exposure sources. Formation, abundance, occurrence, and extraction. Properties compared with light metals. Uses.
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The Métis ( / mɛˈtiː ( s )/ meh-TEE (S); French: [metis]; Canadian French: [meˈtsɪs]; [citation needed] Michif: [mɪˈtʃɪf]) are an Indigenous people whose historical homelands include Canada's three Prairie Provinces, as well as parts of British Columbia, the Northwest Territories, Northwest Ontario and the northern United States.
