Quick Facts About Post-Transition Metals
Alumumium, tin and lead are post-transition metals familiar to most people. The post-transition metals, otherwise known as poor metals, are found in groups 13, 14 and 15 (the p-block) on the periodic table. With lower melting and boiling points than transition metals, they are also softer and have a higher electronegativity. However, they have significantly higher boiling points from the metalloids in the same row.
List Of Post-Transition Metals
is a silvery-white chemical element and is the most abundant metal found in the Earth’s crust. Only oxygen and silicon are more abundant. It does not occur in metallic form in nature but is found combined with rocks, soils, clays and some gemstones. It can be found in vegetation and in all of the earth's water. Aluminium has a broad range of uses and its alloys are integral to the aerospace and transportation industries. The top smelters of alumina are China, Russia and Canada.
is a very soft silvery-white metal with a bright lustre found predominately in zinc
deposits. It has a low melting point. It is used as plating for materials, in medical imaging and to create seals. Most consumers would have interacted with its use in LCD and touch screens. China is the leading producer of Indium.
is a chemical element not found in free form in nature. It is found in trace amounts in bauxite and zinc ores and has a silvery appearance and is soft. Gallium is used in alloys, semiconductors, fuel cells and pharmaceuticals. France is the leading refiner for gallium metal.
is a soft metal with a shiny silver colour, it is ductile, malleable and highly crystalline and is very corrosion resistant in air and water. Tin is used in alloys, for plating steel and is used in solder for making electrical connections. China, Indonesia and Peru are the largest tin producers in the world.
– Pure bismuth
is a white, brittle metal with a slight pink colour. Bismuth is usually produced as a by-product of the processing of other metal ores like tin
. Bismuth is used with alloys and is used in automatic fire sprinkler systems, fire detection systems and electrical fuses. It is also used as a yellow pigment in paints and some of its compounds are used to treat diarrhoea. China is the largest producer of bismuth although the greatest resource provider is Bolivia.
is a highly toxic metal found in the Earth’s crust and occurs rarely in a natural format, it is usually found in ore with copper, zinc and silver. One of lead’s most important uses is as a shield against radiation during x-rays. It can also be found in paints, batteries and some toys. The chief producers of lead are Australia, China, America, Canada and Russia.
is found in trace amounts in zinc
and other heavy-metal sulphide ores. It is a highly toxic metallic chemical element and was traditionally used in rat poison. Today, its uses are controlled and it can be found in semiconductors, infrared detectors and in nuclear medicines. Russia and Germany are the largest producers of thallium.
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