Wednesday, June 5, 2019

Structure, Physical Properties and Uses of Metals

Structure, Physical Properties and Uses of MetalsJason Thien FSIntroductionMetals account for about two thirds of whole the elements and about 24% of the mass of the planet. Metals contain useful properties including strength, ductility, high melting points, thermal and electrical conductivity, and toughness. From the periodic table, it plenty be seen that a large bout of the elements argon classified as beingness a metal. put right (Fe)The symbol for iron, Fe, comes from the Latin word Ferrum, and is one of the close useful elements in the world. compress hasAn atomic mass of 55.845 amuMelting point of 1535.0 class CelsiusBoiling point of 2750.0 degree celsiusElectric figure of Ar 3d6 4s2Density of 7.86g/cm3 at 20 degree Celsius26 number of electrons and protons and 30 neutronsAtomic structure of IronIron has a cubic crystallizing structure which is cubic body centered normally and it becomes cubic faced centered when heated up to between 1185K 1667K.Uses of IronIron is the most employ metal in the world due to being the fourth most abundant element in the terra firmas crust in addition to having high strength. It is also due to this which makes Iron having a lower cost than most metals in proportion to usefulness.Iron is ductile, relatively soft and a moderately good conductor of heat and electricity. It is utilize to make m any(prenominal) things from screwdrivers to machine parts and automobiles to hulls of large ships. Iron stomach also be made into many useful compounds such as Iron Chloride, Iron Sulfate, Iron Hydroxide and steel. Iron can also be slowly magnetized and lose its magnetism easily, making it suitable for making the core of an electromagnet.Copper (Cu)Copper comes from the Latin word cyprium. Copper hasAn atomic mass of 63.546 amuMelting point of 1083.0 degree CelsiusBoiling point of 2567.0 degree CelsiusElectric configuration Ar 3d10 4s1Density of 8.96g/cm3 at 20 degree Celsius29 number of electrons and neutrons and 35 neu tronsCopper has a cubic-faced centered structure in its crystal form.Uses of copperCopper is malleable, ductile and an excellent conductor of heat and electricity with only Silver having a higher electrical conductivity than copper. As a result of its excellent electrical conductivity properties, it is commonly used in electrical equipments such as wirings and motors.Copper is also used in roofing, guttering and rainspouts on buildings due to its slow corrosion rate. Many commercially important alloys such as brass and bronze contains copper. Furthermore, it can be used for many useful compounds such as copper sulfate and copper oxide. Copper is also an essential element in our body to help enzymes produce energy in cells.aluminum (Al)Aluminium comes from the latin word alumen. Aluminium hasAn atomic mass of 26.981 amuMelting point of 660.37 degree CelsiusBoiling point of 2467.0 degree CelsiusElectric configuration Ne 3s2 3p1Density of 2.702g/cm3 at 20 degree Celsius13 number of ele ctrons and neutrons and 14 neutronsAluminium has a face-centered cubic structure in its crystal form.Uses of aluminiumAluminium is a silvery-white metal. It is non-magnetic and an excellent conductor. As a result of its low density, low cost, thermal conductivity and corrosion resistance, aluminium is widely used around the world. It can also be easily cast, machined and formed. It is the second most malleable and sixth most ductile metal. overdue to these properties, it is extensively used to make airplanes, outside building decoration and in any area where a strong and light material is needed. It also has no aroma compared to many metals therefore it is used for food packaging and cooking utensils. Although non as good as copper, Aluminium is still a good conductor of electricity. Because of this and also that it is heaper and lighter it is commonly used to make overhead spring cables.Gold (Au)The symbol for gold, Au, comes from the Latin word aurum. Gold hasAn atomic mass of 1 96.96 amuMelting point of 1064.43 degree CelsiusBoiling point of 2807.0 degree CelsiusElectric configuration Xe 4f14 5d10 6s1Density of 19.32g/cm3 at 20 degree Celsius79 number of electrons and neutrons and 118 neutronsGold has a lattice faced centered structure in its crystal form.Uses of goldIt is a soft, yellow metal with a beautiful lustrous sheen. It is the most malleable and ductile of all the elements and a single gram can be beaten into a one square meter sheet of gold leaf. Gold is widely used in jewelry and coinage. It is also used in dental work as crowns, as gold platings for decoration and as gold thread in embroidery work. Nearly 80% of all recycled or mined gold is intended for ornamental use.Many satellites carry gold-covered mylar sheets as a solar heat shield because gold is an excellent reflecting telescope of radiation and is unreactive. Gold is also widely used in microelectric circuits to ensure reliable, corrosion-resistant and static-free performance. atomic number 80 (Hg)The symbol for atomic number 80, Hg, comes from the Latin word Hydrargyrum. Mercury exists in the liquid produce at room temperature. Mercury hasAn atomic mass of 200.59 amuMelting point of -38.87 degree CelsiusBoiling point of 356.58 degree CelsiusElectric configuration Xe 4f14 5d10 6s2Density of 13.456g/cm3 at 20 degree Celsius80 number of electrons and neutrons and 121 neutronsMercury has a rhombohedral structure in its crystal form.Uses of MercuryMercury is a dense, silvery-white, detrimental metal with a mirror like appearance. It is the only common metal to be in liquid state and evaporates slowly at room temperature. Mercury can readily form alloys (called amalgams) with other metals such as silver and gold. Since it does not react in iron, mercury is often stored in iron containers.Due to its high density, mercury is used in barometers and manometers. It is extensively used in thermometers thanks to its high rate of thermal expansion that is slightly consta nt over a wide temperature range. Its ease with almagating with metals is made use of in extracting them from their ores. Mercury is widely used in advertising signs, mercury switches and other electrical apparatus. Various compounds of mercury are used in medicine, dentistry, cosmetics and also in agriculture to make fungicide.Platinum (Pt)The name Platinum comes from the Latin word Platina. Platinum hasAn atomic mass of 195.078 amuMelting point of 1772.0 degree CelsiusBoiling point of 3827 degree CelsiusElectric configuration Xe 4f14 5d9 6s1Density of 21.45g/cm3 at 20 degree Celsius78 number of electrons and neutrons and 117 neutronsPlatinum has a face centered cubic structure in its crystal form.Uses of PlatinumPlatinum is a precious metal soft, silvery-white, and dense with a beautiful lustrous sheen. It is malleable and ductile and has a high melting point. Platinum does not oxidize in air even in high temperatures and is unaffected by common acids.Platinum is widely used as a catalyst for chemical reactions with the most important use in vehicles as a catalytic converter. Platinum is also used in jewelry, decoration and dental work. The metal and its alloys are also used for electrical contacts, fine resistance wires and medical/laboratory instruments. It can also be used to make electrodes sealed in glass.Bibliographyhttp//www.usesof.net/http//www.chemicalelements.com/index.htmlhttp//www.lookchem.com/http//www.rsc.org/http//www.lenntech.com/index.htm1 Page

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