CHEMISTRY UNIT 2 STRUCTURE OF ATOM The rich diversity of chemical behaviour of different elements can be traced to the differences in the internal structure of atoms of these elements. After studying this unit you will be able to • know about the discovery of electron‚ proton and neutron and their characteristics; • describe Thomson‚ Rutherford and Bohr atomic models; • understand the important features of the quantum mechanical model of atom; • understand
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all life. The history of the study of the atomic nature of matter is the thinking process that goes on in the scientist’s heads. Further progress in the understanding of atoms did not occur until very famous scientist created the atomic theory. Here are some scientists who changed the way we learn about the atom‚ and the atomic nature of all life. Ernest Rutherford. Ernest Rutherford was another scientist that changed the atomic model. Rutherford was studding physics up until his junior years
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high life level requirements. But at the same time‚ people gradually ignored the earth environment protection. The environment of our planet is become more and more terrible. For instance‚ there are many environment issues around us like Global Warming and air pollution. In my opinion‚ one of the most significant problems that humans are endangering themselves and our planet is using pesticides. Pesticides are harmful for its toxicity. They are dangerous to living things. And we can encounter pesticides
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Unit 6006 - Management Systems and Structures The assignment will be conducted on M&S (Marks Spencer) a UK based retailer which is a prominent name in retail clothing‚ with more than 895 stores in 40-plus territories around the world. Its head office is London‚ England. The company is one of the largest clothing retailers in the UK‚ as well as being an upmarket food retailer. Majority of its 600 plus domestic stores sell both clothing and food‚ and in the last decade it has started expanding into
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SOLAR TREES In modern days the use of non renewable resources is being a major part of lab works. There are different types in these sources‚ but the utilization of them is must. In an age of global concern for escalating fossil fuel prices‚ energy security and CO2 emissions‚ a fervent demand for sustainable energy sources endures. In apt response to this critical issue‚ a renewable alternative energy innovation is receiving wide spread interest and attention. Hence the development
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Reading Comprehension Name: _________________________ Is Pluto a Planet? By: National Geographic Kids (Adapted by Have Fun Teaching) Many people are saying that Pluto is no longer a planet. Are they right? Is Pluto no longer a planet? There’s debate in the scientific world about this issue. National Geographic News says that‚ according to the International Astronomical Union‚ a full-fledged planet is an object that orbits the sun and is large enough to have become round due to the force of its
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Nine Planets | | A Multimedia Tour of the Solar System: one star‚ eight planets‚ and more | | This website is an overview of the history‚ mythology‚ and current scientific knowledge of the planets‚ moons and other objects in our solar system. Each page has our text and NASA’s images‚ some have sounds and movies‚ most provide references to additional related information. In association with our friends at Solar System Scope we now have an interactive tour of the solar system (takes a while
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am going to talk about my hero‚ or I should say my heroes - EXO. EXO is a music band from Korea and China; there are 12 members‚ which are separated into two subgroups‚ EXO-K and EXO-M. Their name was taken from the word ’exoplanet’‚ a term referring to planets outside of the solar system. In their music video‚ each of them has a special ability‚ such as ice‚ which can freeze everything; healing ability; teleportation; flying as a dragon; mind control and so on. I think they are heroes because
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Ernest Rutherford was a New Zealand-born British physicist and chemist who was known as the father of nuclear physics. He studied at many colleges and universities including Havelock School‚ Nelson College‚ Canterbury College‚ The University of New Zealand‚ and The University of Cambridge. In 1908‚ he won the Nobel Prize in chemistry. His main contribution to physics was his invention of radio activity and the work he did with protons‚ neutrons‚ and electrons‚ where he concluded that an atom is mostly
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Mintzbergs Model on Organisational Structures The Five Parts This note summarises the key features of Henri Mintzbergs theory on the structuring of organisations‚ which he presented in his book The Structuring of Organisations and Structure in 5 ’s: Designing Effective Organizations in the early 1980s. According to Mintzberg organisations are formed of five main parts: Operating core Those who perform the basic work related directly to the production of products and services Strategic apex
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