Inventory Control Automated Office System David Pierce Individual Project IS316 - Systems Analysis and Design Professor: Erlan Burk Park University Fall II 2010 Table of Contents System Description 2-3 Functional Description 4-5 Data Dictionary 6-8 Context Level Diagram and Child Diagram 9-12 System Input‚ Output Forms‚ and Interfaces 13-14 Testing‚ Maintenance and Auditing 15 System
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Boron On the Periodic Table The chosen element was “Boron”. Its atomic number on the periodic table is 5. It has 5 protons/electrons and 6 neutrons. The scientific symbol for Boron is “B”. It is not a gas element; it is in between a metal and a non-metal‚ which they would call a metalloid or a semimetal. At room temperature‚ this element is a solid. The density is 2.34 g/cm3. When it is at room temperature‚ it is a poor electric conductor‚ but when it is at high temperatures‚ it is a good
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Lanthanide family. Neodymium is a chemical element with the symbol Nd‚ the atomic number 60‚ and a soft‚ bright‚ silvery white metal. It was first identified in 1885‚ in Vienna‚ by Austrian scientist Carl Auer von Welsbach. Neodymium was discovered in ‘didymium’ a substance incorrectly identified by Carl Mosander in 1841. In 1869‚ ‘didymium’ had the symbol Di in Mendeleev’s first periodic table in 1869. Many people‚ such as Bohuslav Brauner‚ tried to identify the element
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Niobium‚ with a chemical symbol of Nb‚ is the lustrous light gray ductile metallic element that resembles tantalum chemically‚ and proves to be an extremely essential yet fascinating transition element. With an atomic number of 41‚ niobium combines strength‚ a high melting point‚ resistance to chemical attack‚ and a low neutron absorption cross-section. All of this promotes its use in the nuclear industry‚ especially in control rods of nuclear reactors. The prices of niobium are reasonable too‚ at
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scientists‚ but perhaps in the future the periodic table may be improved. The article shows how the periodic table was improved upon over the years. “It was Lavoisier who wrote the first extensive list of elements - containing 33 elements. He distinguished between metals and non-metals‚ dividing the few elements known in the 1700’s into four classes. Then John Dalton made atoms even more convincing‚ suggesting that the mass of an atom was it’s most important property.” In this quote the author exhibits the
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Common Elements/Uses Element Common Uses &/or Descriptions Aluminum A light metal used in making airplanes‚ buildings‚ pots and pans‚ etc. Bromine Used in photography‚ medicines‚ insecticides‚ etc. Calcium A soft‚ metallic chemical element found in limestone‚ marble‚ chalk‚ etc. Carbon Found in coal‚ oil‚ gas‚ living things‚ and inks. Chlorine Used in bleach‚ in chemical to kill germs in swimming pools‚ and found with the element sodium in table salt. Chromium A shiny metal usde on bumpers
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The purpose of the lab was to find out the chemical elements based on the color of the flame that elements make by their reaction. The work we completed in the lab was testing the chemical effects of the flame from the chemicals. We tested different elements and wrote down our observations. I accomplished the knowledge of testing chemicals and making responses based on our observations.Electrons are the particles found in the chemicals that may be responsible for the production of colored light.
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different shapes and sizes‚ they are always moving and they join together to form different materials. But due to no real proof he was considered a fool and that he was crazy. Aristotle Aristotle believed that there were five different types of elements: Earth‚ Wind‚
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Minerals are elements that originate in the Earth and cannot be made by living organisms. They are natural compounds formed through geological processes and are what remains as ash when plant or animal tissue is burned or decompose completely after death. Minerals are inorganic substances which means they are not formed by living matter and contain no carbon‚ and can be simply defined as chemical molecules which cannot be reduced to simpler substances. To be classified as a "true" mineral‚ a substance
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CHM130 Lab 5 The Atomic Mass of Beanium Name: Paige Miller A. Data Table: Insert your Data Table here with your sample calculations. You must show at least one sample calculation per procedure step. (16 points) Part I Data Table Sample Mass (mg) Number/Qty Average Mass (mg) Relative Abundance Relative Weight (mg) Kidneybeanium 1660.00 mg 3 553.33 mg 0.2143 118.58 mg Pintobeanium 2830.00 mg 6 471.67 mg 0.4286 202.16 mg Blackeyedpeaium 1110.00 mg 5 222.00 mg
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