A great criticalthinking question to cap the exercise is. Here are lists of five metals and five nonmetals, an explanation of how you can tell them apart, and some examples of their uses. A powerpoint containing a series of lessons on metals and their uses, adapted from the exploring science scheme for year 8. Since world war ii, the production of lithium metal and its compounds has increased greatly. Ideally, hang them up or keep them in a drawer with nonmetallic dividers and enough room to fit without a lot of contact. Last update of regulatory texts and reference documents referred to in these sheets. Records show that ancient civilizations used handmade metal files and stone rasps.
For best results, we suggest a minimum of six combinations of metals and metal ions. Its important to be able to distinguish between the different types of elements. The metals zinc and lead are produced from this ore in two stages. File, in hardware and metalworking, tool of hardened steel in the form of a bar or rod with many small cutting edges raised on its longitudinal surfaces.
Why the economics of metal extraction can change over time. Metals and non metals chapter3 i n class ix you have learnt about various elements. Transformationis the essence of magic, and stones help us achieve this by lending their powers and providing focal points for our own energies. Which file you use is dependent on the type of work you are doing. Most are hand tools, made of a case hardened steel bar of rectangular, square, triangular, or round crosssection, with one or more surfaces cut with sharp, generally parallel teeth. Mari golub,2 harlal choudhury,3 michael hughes,4 elaina kenyon,5 marc stifelman6 submitted to. Pdf minerals and their usesnative elements researchgate. Examples of alloys are brass, bronze, pewter and steel. Most elements are metals, but quite a few are nonmetals. Calcium is an important metal ion in ones diet, because it is essential for strong bones and teeth. You have seen that elements can be classified as metals or nonmetals on the basis of their properties. Ferrous metals are those composed primarily of iron atomic symbol fe and iron alloys. Use the information given to help you to answer these questions.
Stage 1 decomposing the carbonates to produce a mixture of zinc oxide and lead oxide. A file card has rows of small, stiff wire that cleans debris from a files teeth. A characteristic of this group of cations is that they are in themselves, rather than as members of metalligand complexes, responsible for a number of. What properties did you think of while categorising elements as metals or non metals. Strong metals such as iron and metal alloys such as stainless steel are used to build structures, ships, and vehicles such as cars, trains, and trucks.
Properties and uses of metal in the seabees, steelworkers are the resident experts on the properties and uses of metal. That most metals need to be extracted from their ores using a chemical reaction such as. The production of lowcarbon steel uses oxygen but the production of titanium uses argon. Metals and alloys some metals are important as pure elements e. Metals are generally not used in their pure state but as mixtures of metals or metal and non metal constituents commonly referred to as alloys. Common maintenance tools and their uses tools are designed to make a job easier and enable you to work more efficiently. The biological uses of the transition metals mean that you and most other living things rely upon them for a great number of functions in your body. We lay airfields, erect towers and storage tanks, assemble pontoon causeways, and construct buildings. Ferrous metals composition, properties and uses of some.
Od1643 us army correspondence course program 6 credit hours general the purpose of this subcourse is to introduce the student to the properties of metals, their characteristics, uses and identification codes. On the other hand, most of the metals are active and combine with air, moisture, carbon dioxide and non. Tm 9243 types and uses files are used for cutting, smoothing off, or removing small amounts of metal, wood, plastic, or other material. Ferrous metals appear in the form of cast iron, carbon steel, and tool steel. What properties did you think of while categorising elements as metals or nonmetals. Based on properties, metals can be differentiated as. Think of some uses of metals and non metals in your daily life. The radioactive halflife is the time for half the nuclei to disintegrate. They are known either by their crosssection, the general shape, or by their particular use. Crystalline metals are composed of regular, threedimensional arrays of atoms which exhibit longrange order. Ferrous metals include all forms of iron and ironbase alloys, with small percentages of. Try to cut these metals with a sharp knife and note your observations. Since it has various varieties and large scale use, it is categorized as ferrous.
On one side there are revision notes, and on the other revision questions. The basic difference between crystalline standard magnetic material and glassy metals is in their atomic structures. Bent or curved bodi files have teeth only on the convex side and have an offset handle tang for knuckle clearance. A pure metal is an element eg iron, copper, gold unalloyed not mixed with another substance. Which file you use is dependent on the type of work you are doing and the material you are using. An atom is the smallest part of an element that can exist. On this chart, an element is called longlived if the. Minerals and metals fact book 2016 is to provide key information related to canadas exploration, mining, and mineral manufacturing industries in a format that is easy to consult. Files are manufactured in a variety of shapes and sizes.
The first steps in the production of a metal object are to extract the ore from the mine, process the ore for smelting, and then eventually smelt the ore into metal. It is a joy to read these, and i have cherished these tales since my childhood. As the name indicates these are the metal combination of iron with carbon. We use our expertise to repair metal items, resurface worn machinery parts, and fabricate all types of metal objects. Chapter 2 definition of heavy metals and their role in. There are five chief metals and a couple of alloys, which are formed by melting and mixing two or more metals together, which you will find the most useful and i shall describe. The most reactive include lithium, potassium, and radium, whereas those of low reactivity are gold, silver, palladium, and platinum. Check out our file identification chart to learn more.
Shiny metals such as copper, silver, and gold are often used for decorative arts, jewelry, and coins. It is common in woodworking, metalworking, and other similar trade and hobby tasks. Find powerpoint presentations and slides using the power of, find free presentations research about reactivity of metals and their uses ppt. The best documents to assist you in this process are astmf567.
Composition, properties and uses of some common ferrous metals name composition properties and characteristics principal uses cast iron alloy of iron and 25% carbon, % silicon and traces of magnesium, sulphur and phosphorus. Tossing your files in with all your metal tools is not a good idea. This includes the elements of the third to seventh main groups of the periodic table, but excludes the rare gases the eighth main group. The wood preserving industry uses about 90% of the industrial arsenic in the u. Metals and nonmetals chapter3 i n class ix you have learnt about various elements.
Extraction transition metals iron extraction copper extraction aluminium and titanium iron and steel alloys. The nail is coated with a layer of copper while the. Nonmetals form negative ions, and their names end in group 4 and 5 do not usually form ions because they would have to lose or gain several electrons and that takes too much energy ide group 0 elements do not form ions. Nickel silver, typewriter metal, commercial bronze, spring brass, soft solder, and aluminum solder all contain zinc. Accompanying resources titled by lesson number which should just be ready to print and go. Copper is an excellent electrical and heat conductor. Precious metals such as gold and silver are also alloyed with other metals to make durable jewelry. Also the little water paintings that appear in these tales make the reading much more fun, as a reader you are taken to the fantasy world through these little images. These are made from different sections or shapes and some. Examples and uses of metals and nonmetals thoughtco.
Materials selection considerations for thermal process. These elements are divided into metals, semimetals and nonmetals. Stage 2 mixing the oxides with carbon and heating in a furnace. Metal alloys are combinations of different metals in one mineral. Metals are composed not of complete atoms, but of cations, atoms that have lost their outer electrons. Edges set and cut for filing gullets between saw teeth. Examples top ten elements by weight human body top eight elements by weight earths crust ferromagnetic at room temperature magnetic solid liquid at room temperature gas corrosion. Files are made in various lengths, shapes, and cuts. For example gold, silver, mercury and platinum occur in free state. The lowly hand file has been the tool of choice to smooth, hone, clean and deburr all kinds of material since the stone age.
Think of some uses of metals and nonmetals in your daily life. Download this web site to your computer adobe acrobat format pdf. Stones, like colors, plants and othernatural objects, are magical toolswhichwecanuseto causeneededchange. Minerals and metals fact book 2016 iii preface the purpose of the. Most files are made from high carbon steel where the length has been hardened and tempered, but the tang has been left soft. For metals listed under cercla antimony, arsenic, beryllium, cadmium, chromium, copper, lead, nickel, selenium, silver, thallium, and zinc, no reporting of releases of the solid form is required if the mean diameter of the pieces of the solid metal released is greater than. Jan 16, 2012 the lowly hand file, relied upon since the stone age, has been the tool of choice to smooth, hone, clean and deburr all kinds of materials for thousands of years. Rare earth metals actinide metals noble gases halogens s or s s metals nonmetals h the color of the symbol is the color of the element in its most common pure form. Animal feeding operations and certain fertilizers and pesticides can release high amounts of arsenic to the environment as can industry practices such as copper or. Human health effects of heavy metals introduction heavy metals are individual metals and metal com. Of all the different metals and materials that steelworkers use, steel and steel alloys are. The high electrical and thermal conductivities of the simple metals i. Some metals like sodium, potassium and magnesium are easy to cut. Chapter 1 introduction to types and identification of metal.
Arsenic is also found in paints, dyes, metals, drugs, soaps and semiconductors. Recognize the different types of metals used in aircraft and where they are used y. There are at least 20 different crosssectional shapes. Chapter 1 properties and uses of metal seabee magazine. Some of the pure metals discussed in this chapter are the base metals in these alloys, especially iron, aluminum, and magnesium.
Combining different ratios of metals as alloys modifies the properties of the resultant. Apr 16, 2017 this is for the old aqa chemistry course. There are different types of metals based on physical and chemical properties. So, all these aspects have been given due importance while laying emphasis on the uses of the metals.
Metals, in their pure state, have a shining surface. Metals have lots of uses, as elements, alloys or compounds. Nonferrous metals are those composed primarily of some element or elements other than iron, although nonferrous metals or alloys sometimes contain a small amount of iron as an alloying element or as an impurity. Of course, as has been said, there are some direct industrial uses for metallic minerals in addition to their principal use i. They also use their expertise to fabricate all types of metal objects. Bronze is considered the earliest alloy to be used by humans and was probably discovered when copper and tin accidentally melted together and hardened. Such metals are called noble metals as they show the least chemical reactivity. Metals and their uses like woods each metal has its especial uses and it will depend largely on what you are going to make as to the kind of metal you should make it of. Today there are numerous sizes, shapes and types of fileseach designed for a specific application. Chapter 2 magnetic materials and their characteristics. Store them away from water, dirt, grease and filings.
Why is a particular metal or a metallic mineral used to perform a particular function or to. Most of the metals are solids in nature except for mercury which shows liquidlike motion. The data and information in this edition cover the 2015 calendar. They also use their expertise to fabricate all types of metal objects, repair metal items, and resurface worn machinery parts. Some metals have specific qualities that dictate their use. In some places, the mineral deposits in rock contain a high concentration of one metal. The presence of heavy metals in waste as a result of their uses in modern. You dont have to be a chemist to recognize that metals and non metals are different, however, to understand why they are so different we need to look at the structure of metals in more detail. Get a file card and use it while you file and after youre done. For section 302 ehss, local emergency planning committees lepcs must develop emergency response plans and facility. Diamond files are also the only type that may be used with a backandforth motion without damaging the file. The tang is used to attach the handle on american pattern files. Issue paper on the human health effects of metals robert goyer1 contributors.
Leonardo da vinci was among the first to design a machine to manufacture files. What are some examples of five metals and their uses. Reactivity of metals and their uses ppt xpowerpoint. All the elements have been arranged in a table, called the periodic table, in order of their atomic numbersthe number of protons an element has in each of. The book has many tales about metals related to their uses and discovery. Metals and their uses ks3 y8 exploring science teaching.
They are the hardest elements which are found on the earth. Once you learn how to identify different metals confidently, beyond the. An alloy is a mixture of two or more elements eg, iron and carbon to make another metal with particular properties eg steel. Day regulate the content of the heavy metals cadmium, mercury and lead in. Chapter 1 common maintenance tools and their uses tools are designed to make a job easier and enable you to work more efficiently. As we learn their different properties and characteristics, we can then select the right type of metal and use the proper method to complete the job.
That a rock with enough metal in to make it economic to extract the metal is called an ore. Other metals discussed are the alloying elements present in small quantities but important in their effect, including chromium. Metal, any of a class of substances characterized by high electrical and thermal conductivity as well as by malleability, ductility, and high reflectivity of light. Approximately threequarters of all known chemical elements are metals. Files are classified according to their crosssectional shapes, the form of the cutting edges, and the coarseness of the cut i. These factors include mechanical properties, oxidation or hot corrosion resistance, use of cast or fabricated components, and material availability. Metals in general have high electrical conductivity, high thermal conductivity, and high density.
A file is a tool used to remove fine amounts of material from a workpiece. You have seen that elements can be classified as metals or non metals on the basis of their properties. Chapter 1 introduction to types and identification of metal navy bmr. The various alloys of iron, after undergoing certain processes, are pig iron, gray cast iron, white iron, white cast iron, malleable cast iron, wrought iron, alloy steel, and carbon steel. Mechanical properties of metals include ductility, i. Most metals react with acids to produce salts and hydrogen. Both ferrous and nonferrous metals are divided into pure metals and alloys. All modern mirrors contain a thin coating of metals. They are known either by their crosssection, the general shape. An ore is a mineral deposit that can be mined and refined at profit. View and download powerpoint presentations on reactivity of metals and their uses ppt. Elements and their uses qfiles the online library of. They are bendable into different shapes and have many uses in.