Top 10 metals facts

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Zinc and copper. Brass is a metallic alloy that is made of copper and zinc. The proportions of zinc and copper can vary to create different types of brass alloys with varying mechanical and electrical properties.

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industry facts

How big was the biggest gold nugget?

235 kg. The largest nugget was found in Australia in 1872. It weighed 7555.42 Oz (235 kg) and was 1.42 m long.

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gold facts

What is steel made of?

Iron and coal. Carbon steel, composed simply of iron and carbon, accounts for 90% of steel production. Low alloy steel is alloyed with other elements, usually molybdenum, manganese, chromium, or nickel, in amounts of up to 10% by weight to improve the hardenability of thick sections.

NayaNo

construction facts

When and where was the idea of gold, silver and bronze medals for sport event competitors introduced?

1904 Summer Olympics, St. Louis. The choice of metals comes from the first three Ages of Man in Greek mythology: the Golden Age, when men lived among the gods; the Silver age, where youth lasted a hundred years; and the Bronze Age, the era of heroes.

Kasia

Olympic Games facts

What material are church bells made of?

Bronze. The traditional metal for church bells is a bronze of about 23% tin. Steel was tried during the busy church-building period of mid-19th-century England, for its economy over bronze, but was found not to be durable.

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alloys facts

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Which naturally occurring chemical element is the densest?

Osmium. The density of osmium is 22,570 kg/m3, slightly more than Iridium (22,420) and platinum (21,450). Commonly used metals are considerably less dense - the density of iron is 7,870, lead 11,340 and mercury 13,456.

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chemical elements facts

Which of these elements is not a precious metal?

Lanthanum is a chemical element with symbol La . It is a soft, ductile, silvery-white metal that tarnishes rapidly when exposed to air and is soft enough to be cut with a knife. Lanthanum does not belong to precious metals.

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chemistry facts

Which of the following metals is the most reactive?

Cesium. Caesium or cesium is a chemical element with symbol Cs and atomic number 55. It is a soft, silvery-gold alkali metal . Is most reactive of all metals.

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chemistry facts

Which metal has the highest reflectivity and thermal conductivity?

Silver is a chemical element with symbol Ag and atomic number 47. A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal.

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physics facts

What is brass composed of?

Copper and zinc. Brass is us used for musical instruments such as horns and bells for its acoustic properties and high malleability. One type of brass, called Prince's metal (75% copper, 25% zinc), is used as an imitation of gold due to its beautiful yellow color.

Kasia

musical instruments facts

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