C2.1.1 Structure and bonding a) Compounds are substances in which atoms of two or more elements are chemically combined. b) Chemical bonding involves either transferring or sharing electrons in the highest occupied energy levels (shells) of atoms in order to achieve the electronic structure of a noble gas. c) When atoms form chemical bonds by transferring electrons‚ they form ions. Atoms that lose electrons become positively charged ions. Atoms that gain electrons become negatively charged
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FOUNDATION COURSE PROJECT PROBLEMS OF THE SENIOR CITIZENS ILL-TREATMENT BY THE NEXT GENERATION AND GENERATION GAP ISSUES INTRODUCTION The traditional norms and values of Indian society laid stress on showing respect and providing care for the elderly. Consequently‚ the older members of the family were normally taken care of in the family itself. The family‚ commonly the joint family type‚ and social networks provided an appropriate environment in which the elderly spent their lives. The
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------------------------------------------------- History of science and technology From Wikipedia‚ the free encyclopedia For historical accounts of the development of science and technology‚ see history of science and history of technology. History of science | | Background[hide] * Theories/sociology * Historiography * Pseudoscience | By era[hide] * In early cultures * in Classical Antiquity * In the Middle Ages * In the Renaissance * Scientific revolution * Romanticism in science | By culture[hide]
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Conflict in Vietnam‚ 1963-75 Revision Notes This topic is in Paper 2‚ the source-based exam – along with World War One. There is no choice of question. The paper tests your source skills‚ but you must have a good knowledge of the topic as well - and be able to use this both in your answers and in order to understand the sources properly. Read the advice on the front of your WW1 revision pack for tips on how to answer the exam questions. Part 1; Reasons for the US involvement in
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New technology is coming out day after day‚ and getting harder to keep up with‚ especially for our senior citizens. There are desktops‚ laptops‚ smart-phones and tablets. Each and every one of these devices can keep someone connected to the ones they love and local news; nationwide‚ and even worldwide. Having a computer in one’s home can drastically change the way one lives. He or she may keep connected to family in another state‚ stay updated with news reports‚ continue a hobby and even shop online
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Further Pure 1 Revision Notes • Proof by induction To prove by induction that a statement (C) involving an integer n is true for all [pic]‚ prove that‚ i) (C) is true for [pic]; ii) if (C) is true for [pic]then (C) is true for [pic]. And then bring these parts together to complete the proof. • Summing series using formulae To sum series‚ use a combination of the following formulae. Second two are given in formula book. [pic] [pic] [pic] e.g. Q:
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The senior project was a challenge simply because the type of research needed was foreign for me. I had researched a few things in past courses but never like this. This project showed me I am not as disciplined as I once was. The senior project has been a revealing process‚ too. Both in identifying weaknesses as well as strengths. The skill set for attention to detail had gone lax‚ for me. Which was an area where I could be more attentive. Although‚ those are areas where I am somewhat weak
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Business Revision Nature of Business 9.1 Role of business: Nature of a Business: A business can be defined as the organised effort of individuals to produce and sell‚ for a profit‚ the products (goods and services) that satisfy individuals’ needs and wants. Business enterprises undertake many activities to provide the products demanded by customers‚ with production being one of the most important. Production occurs when the business combines the resources to create products. Other functions
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Global School-based Student Health Survey Ghana Senior High 2012 Fact Sheet The 2012 Ghana Senior High GSHS was a school-based survey of students in Grades SHS 1-4‚ which are typically attended by students aged 13 - 17 years. A two-stage cluster sample design was used to produce data representative of all students in Grades SHS 1-4 in Ghana Senior High. At the first stage‚ schools were selected with probability proportional to enrollment size. At the second stage‚ classes were randomly selected
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WJEC CBAC AS/A LEVEL GCE in Chemistry REVISION AID UNIT 1 AS UNIT CH1 – Controlling and Using Chemical Changes (in order to make things‚ produce energy and solve environmental problems) Preamble This unit begins with some important fundamental ideas about atoms and the use of the mole concept in calculations. Three key principles governing chemical change are then studied‚ viz. the position of equilibrium between reactants and products‚ the energy changes associated with a
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