Lithium Man 7 looks like a AAA battery and weighs 7 amu. He is silver colored with a red and yellow cape that has the number 3 on it. His best friend is Lithium Man 6‚ who looks exactly like him but a little bit thinner. They both live on 152nd street in Lithos City. Lithium Man 7 lives in house 2‚447. Lithium Man 6 lives in house 1‚817. Lithium Man 6 and 7 are both .534 meters tall. Lithium Man 6 and 7 are 199 years old. They can’t be in the water very long or they will dissolve into lithium hydroxide
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General Chemistry Paper on Chemical Elements: Helium Jensen Vu Rabun Gap-Nacochee School Helium is an element in the periodic table. It has the symbol He and an atomic number of 2. Its average atomic mass is about 4.002602 u. There are 7 known isoptopes of helium‚ bearing the electron configuration 1s2. The ionic radius of this element is 93 pm. Helium was first observed and found by French astronomer Pierre Jules César Janssen along with the scientist Joseph Norman Lockyer in 1868‚ adding one
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power systems. SMES is the only technology based on superconductivity that is applicable to the electric utilities and is commercially available today. However‚ because of high cost and large investment of SMES systems‚ most of the reported studies are implemented through computer simulations or in laboratories. There are only a few cases of practical application. Therefore‚ with advancements in technologies and reductions in cost of superconductivities and power components‚ more effort should be launched
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"How Is Helium Produced?" Production: Although Helium is one of the most common elements in the universe it is a rare gas on earth. It exists in the atmosphere in such small quantities (less than five parts per million) that recovering it from the air is uneconomical. Helium is produced as a by-product of the refining of natural gas‚ which is carried out on a commercial scale in the USA and Poland. In these areas natural gas contains a relatively high concentration of Helium which has accumulated
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HELIUM CONTENTS INTRODUCTION………………….….…………………… PROPERTIES……………………………….……………… OCCURRENCE…………………………………………… USES………………..……………………………………… BIBLIOGRAPHY……...…………………………………… INTRODUCTION Heliums name comes from the Greek word “helios”‚ meaning sun. Helium is odourless and colourless and remains as a gas at room temperature; this chemical element is abbreviated as He. Helium has two protons in its nucleus whereas the atomic number of helium is 2 and is listed in group VIII of the periodic
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1- Explain the types of nutrients. Discuss the positive and negative. There are 2 main types of nutrients : 1. Macronutrients 2. Micronutrients Macronutrients also have 3 types: 1. Carbohydrates 2. Protein 3. Fat Micronutrients have 2 types: 1. Vitamins 2. Minerals 3- water Carbohydrates: Carbohydrates are a main type of nutrients‚ and it’s a main source of energy for human. In our body we use it as glucose (blood sugar)‚and we can found it in fruits‚ vegetables‚ milk. There are 2 types simple
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The Element Niobium Atomic Number: 41 Atomic Weight: 92.90638 Melting Point: 2750 K (2477°C or 4491°F) Boiling Point: 5017 K (4744°C or 8571°F) Density: 8.57 grams per cubic centimeter Phase at Room Temperature: Solid Element Classification: Metal Period Number: 5 Group Number: 5 Group Name: none What’s in a name? Named for the Greek mythological figure Niobe. Say what? Niobium is pronounced as ni-OH-bee-um. History
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Experiment #17 Classification of Chemical Substances Prepared for: Dr. Robert O’Reilly By: Kudaibergenov Baizak 20.11.2013 Nazarbayev University Introduction While many thousands of substances are known‚ they can be classified into a few simple categories based on type of bonding that exists among the atoms in the substance. Bonds are chemical forces that hold atoms together to form molecules or compounds. These categories are ionic‚ molecular and metallic substances.
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Walmart Now that Wal-Mart has conquered the US‚ can it conquer the world? AsWal-Mart Worldshows‚ the corporation is certainly trying. For a number of years‚ Wal-Mart has been the largest company in the United States. Now‚ though‚ it is the largest company in the world. Its global labor practices and outsourcing strategies represent for many what contemporary economic globalization is all about. But Wal-Mart is not standing still‚ and is opening up stores everywhere. From Germany to Beijing to
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Introduction of Ceramics What is Ceramics? A ceramic is an inorganic‚ non-metallic solid prepared by the action of heat and subsequent cooling. Ceramic materials may have a crystalline or partly crystalline structure‚ or may be amorphous (e.g.‚ a glass). Because most common ceramics are crystalline‚ the definition of ceramic is often restricted to inorganic crystalline materials‚ as opposed to the non-crystalline glasses. The word ceramic comes from the Greek word "κεραμικός" (keramikos)‚
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