Introduction Zinc is a chemical product with symbol Zn and atomic number 30. It is used with copper to form brass, and it is hard and brittle in it's natural state, less dense than iron and used to make many alloys. Characteristics It is a bluish-silver, lustrous metal that tarnishes in moist air, producing a layer of carbonate. Zinc reacts with both acids and alkalis. Zinc is a fair conductor of electricity and burns in air with a bright bluish-green flame producing white clouds of the oxide. Without loss of its physical or chemical properties, it can be recycled indefinitely. Supply and Demand In 2008, the global zinc supply rate had increased by around 2.7 percent over the previous year. China remains the world's largest zinc producer,
Suitable for the men and younger: Silverstone tyres are suitable for the men Youngers person. It’s because tyre is more suitable to the men and younger. It can attract consumers to buy their product because of the quality and cars is related with the Youngers or teenagers and men. It is the strength to the Silverstone because teenagers that have their own income and easily to buy the car tyre for their cars.
According to recent statistics, zinc is the third most commonly used nonferrous metal in the United States. This unassuming metal was among the first minerals exploited by Man, used as a decorative material for thousands of years, although it never achieved the fame and notoriety of other metals such as gold or silver. In more recent times, new extraction and processing methods have allowed Man to produce higher-quality zinc than ever before, and to use it in an astonishingly high number of chemical and high-tech applications.
Nowadays this element more active or used for infrastructures, electronics goods, and other services, this element also we call it a Dr. Copper element because of high levels of sense of Ph.D. economic benefits. Copper has 20 protons and electrons with the symbol of Cu. In 21 century the market of this element goes up to 20 million tons a year buy and sell in the world trades scale in three big cities in the world such as New York, London, and Shanghai. Cu more necessary for wire, electronics, and computer chips; Copper also helps us to away bacteria
This element when becoming an isotope can become radioactive due to its high activity as a metal. In its natural state it is a soft metal and it has a shiny “ wax “ like silver/white color to it, it is so soft that a knife could cut through it without a problem.
This Experiment is a way of successfully viewing the emission spectra for metal carbonates. By heating the carbonates electrons go from there normal state called ground state to a higher energy state called excited state and the difference in electron energy gap of each metal carbonate makes up the difference of colours. This excited state is not a stable state but while in this state the atom gains additional energy but the variation of energy emitted is a characteristic of that in particular element. In this state the electrons emit photons which is the energy that corresponds to light wavelengths and therefore produces the different light emissions.
Pounding metal and fabricating metal in thin sheets and sections that humans need or want has a long history. The discovery of how to make and control fire made extracting metals form or more efficient instead of having to find almost pure nuggets of metal. In many civilizations copper was the metal they used but that was succeeded by bronze eventually it is made of copper and tin.
"The Home Depot NYSE: HD, headquartered in Vinings, Georgia, is a home improvement retailer that aims for both the do-it-yourself consumer and the professional in home improvement and construction. It is the second largest retailer in the United States, behind Wal-Mart; and the third largest retailer in the world, behind Wal-Mart and French company Carrefour. The Home Depot operates about 1,900 stores across North America. The company operates stores in the United States (including the 50 states, Puerto Rico, the United States Virgin Islands), Canada, and Mexico. The Home Depot also operates EXPO Design Center stores in select U.S. markets, providing high-end home design products and services. Its 2004 sales totaled US $73.1 billion. It was ranked #13 on FORTUNE magazine's FORTUNE 500 The Home Depot also owns a chain of higher-end home decorating and appliance stores. The Home Depot employs over 325,000 people."
Aluminum is one of a number of soft metals that scientists call "poor" metals. It can be shaped and twisted into any form. It can be rolled into thick plates for armored tanks or into thin foil for chewing gum wrappers. It may be drawn into a wire or made into cans. Aluminum is a generally popular metal because it does not rust and it resists wear from weather and chemicals. (Bowman, 391) Aluminum is an element. Its atomic number is thirteen and its atomic weight is usually twenty-seven. Pure aluminum melts at 660.2ºC and boils at 2500ºC. Its density is 2.7 grams per cube centimeter. Aluminum is never found uncombined in nature. (Bowman, 391) Aluminum is a very useful metal that is light, easy to shape and can be strong. This makes aluminum one of the most used metals in the world, right behind iron and steel. (Geary, 185) In its pure state, aluminum is quite weak compared to the other metals. However, its strength can be greatly increased by adding small amounts of alloying elements, heat-treating, or cold working. Only a small percentage of aluminum is used in its pure form. It is made into such items as electrical conductors, jewelry, and decorative trim for alliances and cars. A combination of the three techniques has produced aluminum alloys that, pound for pound, are stronger than structural steel. Some common metals used in alloys for aluminum are copper, magnesium and zinc.(Walker, 31) The added elements give the aluminum strength and other properties. (Newmark, 41) Aluminum is one of the lightest metals. It weighs about 168.5 pounds per cubic foot, about a third as much as steel which weighs 487 pounds per cubic foot. (Neely, 214) As a result, aluminum has replaced steel for many uses. For example, some ...
Now, this rare element has many interesting attributes that are unlike other elements. Rhodium is a silver and white metallic color with
By adding up to 2%,of carbon it makes the steel tough and strong. Although it’s tough and strong, it is able to bend. To make sure that the metal doesn’t rust, it has a zinc coating on it. Iron is 26 on the periodic table,and considered an “transition metal,” meaning that it is ductile and malleable, and conduct electricity and heat. ... “Some other elements that are similar to iron are cobalt and nickel. They are the only elements known to produce a magnetic field.” Zinc is 30 on the periodic table and it is also a transition metal like iron. “The first iron used by humans is likely to have come from meteorites.” A meteorite is a meteor that survives its passage through the earth's atmosphere such that part of it strikes the ground. More than 90 percent of meteorites are of rock, while the remainder consist wholly or partly of iron and nickel. Meteors are believed to have been from the asteroid belt of Mars and
Zinc is an essential trace element for many living organisms. While this can be said about other essential metals, zinc is unique in its physiochemical properties that give it the ability to interact with donor groups of different ligands, resulting in a broad range of stability constants and diversity of the biological functions and processes that zinc is involved in. It was discovered and recognized as a new metal in the eightieth century, While its biological essentiality was found by Raulin for the growth of Aspergillus niger In 1869 [1]. In 1933 Zinc was found essential for the growth of animals while studying its effect on rats. [2]
The SWOT analysis is a useful tool for identifying our personal strengths, weaknesses, opportunities, and threats to our plans and goals. According to a “Fuel My Motivation” article (2010), this analysis considers internal influences that can positively or negatively affect our ability to achieve our goals. The internal factors are our strengths and weaknesses. Also considered are opportunities and threats, which are external influences that can have a positive or negative impact on the ability to achieve our goals. I will share how the self-assessment instruments and self-exercises in this course have contributed to assessing and understanding my strengths and weaknesses. I will also discuss techniques I will use to leverage my strengths and understand my weaknesses. In addition, I will consider opportunities that I can take advantage of and the threats that can possibly impede my progress.
Platinum is an extremely rare, precious metal whose value exceeds that of gold. It is the most widely used of the six platinum group metals that includes palladium, rhodium, iridium, ruthenium, and osmium. It is very heavy, lustrous, silver-white in color, and does not tarnish or corrode. Pure platinum is soft and therefore must be alloyed to increase durability. In the jewelry industry, platinum is alloyed with its platinum group companion, iridium in a nine to one ratio. With its excellent properties of strength, tarnish resistance, and workability, platinum lends itself to the fabrication of intricately designed jewelry items and gem settings. Platinum may also be used in the electrical industry for contacts and resistors, in the glass industry to make dies for fiber glass, and in the automobile industry for use in catalytic converters.