Elements such as fluorine, chlorine, bromine, iodine, and astatine belong to the halogen group. Iodine is a chemical element of the periodic table with the symbol I and atomic number 53. Iodine has 53 protons and 53 electrons and 78 neutrons. Iodine was discovered in 1811 by the French chemist Barnard Courtois. He was extracting sodium and potassium from seaweed ashes. He accidentally added too much of sulfuric acid (H2SO4) then a violet colored cloud erupted from the mass.The gas condensed on
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Rettet unser Schweizer Gold Eine ökonomische Analyse der Goldinitiative Seminararbeit Institutsdirektor: | Prof. Dr. Aymo Brunetti | Betreuender Assistent: | Konstantin Büchel, M Sc Economics | | | Verfasser: | Lorenz Zuber | | Bern | | Matrikelnummer: 10-101-574 | | Sonnenrain 40 | | 3065 Bolligen | | E-Mail lorenz.zuber@students.unibe.ch | | | | Bern, 16.11.2014 | I. Inhaltsverzeichnis I. Inhaltsverzeichnis I II. Executive Summary 3 1. Einleitung
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****SUBMIT TO MOODLE**** Elemental Hero Research – Student Worksheet If your element is a gas at room temperature, there will be some physical properties that do not apply. Skip them. A: General Information: Name: Uranium Symbol: U Group 9 Period 6 Chemical Family: (if any) Actinides Protons: 92 Electrons: 92 Neutrons: 235 Metal/Metalloid/Nonmetal/Noble Gas: Metal Bohr Diagram: (required for Elements 1-20 only) B. Physical Properties: 1. State at room temperature:Solid 2. Color : Silvery white 3
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oxygen makes up 22% of the rest. Nitrogen is obtained from a process called fractional distillation. “Nitrogen is a non-metallic gas”. Nitrogen has the atomic number 7 and is an element with the letter N to label the substance within the periodic table. Nitrogen is colorless, odourless, and tasteless. This substance is acknowledged as a diatomic gas. Nitrogen is known to have a melting point of 63.15K as well as well as 77.36K. Nitrogen compounds were well-known of during the Middle Ages. Alchemists
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2010, a national bestseller and rated Amazon’s “Top 5” science books of the year. This chapter deals with the rarest elements astatine and francium, heavy elements, magic numbers and the different possibilities in the configurations of the periodic table. Chapter 19 of the book The Disappearing Spoon starts off talking about the rarest element in the world, astatine. Astatine come from the greek
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Complete Name: Unit 3 Student Name: Emerson, D'Shelia J ********************************************************************************************************** 1. Recruitment, Examination, and Selection ********************************************************************************************************** 2. What are the various forms of examinations used in screening employees for public employment? Student Answer: Before one is adequately considered qualified for a job in public
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ENT 201 Entertainment Since 1945 Analytical Report Patience Madigan 207749 THE ROLES OF CULTURE AND TECHNOLOGY ON THE FUTURE OF ENTERTAINMENT ——————————————————— Patience Madigan TABLE OF CONTENTS 1. INTRODUCTION ……………………………………………………………….. 4 THE ROLES OF CULTURE AND TECHNOLOGY IN THE FUTURE OF ENTERTAINMENT 1.1 OVERVIEW ……………………………………………………………… 4 1.2 OBJECTIVE ……………………………………………………………… 4 2. DISCUSSION …………………………………………………………………… 5 2.1 TECHNOLOGICAL
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CONTENTS British Bombardment on German Zeppelin bases 1. Th British September Bombardment raid on the Zeppelin bases of Dusseldorf and Cologne…………………………………………………………………page 2 2. The British October Bombardment raid on the Zeppelin bases of Dusseldorf and Cologne…………………………………………………………………page 3 3. The British November Bombardment raid on the Zeppelin base Friedrichshafen……………………………………………………………………………..page 3 4. British September r Bombardment raid on the Zeppelin base of Cuxhaven………………………………………………………………………………………page
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In the year of 1803, the element now known as ‘cerium’ was discovered in the island of Vastmanland, which is located in Sweden. The one who had obtained was Wilhelm Hilsinger. It wasn’t until the year of 1875 did William Hillebrand and Thomas Norton single out cerium chloride to solely cerium by passing the melted compound of cerium chloride through an electrical current. Cerium is located in the family of lanthanides, rare earth metals. Cerium in its pure form is considered silvery, and metallic
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business is a feasible and attractive option for Tanunda. This recommendation is based on two specific factors. Firstly, the Australian wine market, which accounts for a majority of Tanunda’s sales, has been relatively stable , with only the table wine market exhibiting moderate growth. The domestic market is also crowded with close to 1000 competitors chasing after this low-growth market. Relying solely on the domestic market can imply a stagnating growth graph for Tanunda. Secondly
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