The Bohr’s Atomic Model | Argumentative Essay | shhss | In 1913‚ a Danish physicist named Niels Bohr put Rutherford’s findings together with the observed spectra to come up with a new model of the atom in a real leap of intuition. I believe that the Bohr’s model of atom explains well about the atomic theory‚ because in his experiments it is shown and explained the structure of an atom. His famous suggestion is about that the electrons orbit around the nucleus of an atom. Bohr experimented
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Mid-Term Project: Green Computing Janiqua Thompson Digital World Mid-Term Project Green Computing In chapter one‚ it talks about Green computing practice. Green Computing is basically trying to save energy by reducing electricity and environmental waste. I can apply this to how I use my computing practices by listing ways that I can lessen my power usage at home doing my schooling and for people at work. With this I will acknowledge how often I use a printer to print documents as such. I will
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Barium Research Paper Mr.Martin Block 1 May 18th‚ 2012 Abstract Barium was discovered in 1779 by Carl Scheele‚ but was isolated for the first time in 1808 by an English chemist by the name of Sir Humphry Davy. Barium is commonly found as BaSO4. Things that glow in the dark are made from Barium. Barium has many uses and plays a big role in our environment today. Barium can be found almost anywhere in the environment because it is produced there naturally and sometimes affects the environment
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different path. We have to a search for renewable energy‚ because this uses inexhaustible sources. The poor awareness of renewable energy. Too few people know exactly what renewable energy is and even less are using it. Most people have heard of green electricity but there knowledge also stops there. People don’t know the benefits of using renewable energy. A study launched in 1998 by a Sustainable Energy Project (PDE) showed that only 20% of the population knows exactly what renewable energy means
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stopped fighting for what is right‚ they always put up a fight and not always have they won but they never gave up. They have saved many animals and people from danger or even death. And last but not least they have done what a lot of people thought about doing but never did; they did what is best for society and the world. One of the ways they have made the world a better place (and still are in the making) they have fought for protecting whale’s rights. All over places in the world‚ mostly in Japan
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1 in vapour state sulphur partly exists as S2 molecule which has 2 unpaired electrons in the antibondind pi orbitals jus lyk oxygen and thus exhibits paramagnetism. 2 An interhalogen compound is a molecule whose atom contains two or more different halogen atoms (fluorine‚ chlorine‚ bromine‚ iodine or astatine). Most interhalogen compounds known are binary (composed of only two distinct elements). Their formulas are generally XYn‚ where n = 1‚ 3‚ 5 or 7‚ and X is the less electronegative
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Chapter 6 Chemical Reactions and Quantities The Mole General‚ Organic‚ and Biological Chemistry Copyright © 2010 Pearson Education‚ Inc. 1 Collection Terms A collection term states a specific number of items. 1 dozen donuts = 12 donuts 1 ream of paper = 500 sheets 1 case = 24 cans General‚ Organic‚ and Biological Chemistry 2 A Mole of Atoms A mole is a collection that contains the same number of particles as there are carbon atoms in 12.0 g of carbon 12C 6.02 x 1023 atoms of
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CHAPTER # 1 Q.DEFINE CHEMISTRY. A. Chemistry‚ a branch of physical science‚ is the study of the composition‚ properties and behavior of matter. Chemistry is concerned with atoms and their interactions with other atoms‚ and particularly with the properties of chemical bonds. Chemistry is also concerned with the interactions between atoms and various forms of energy Q.DEFINE THE BRANCHES OF CHEMISTRY. * Physical chemistry is the study of macroscopic‚ atomic‚ subatomic‚ and particulate phenomena
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CHEMISTRY III : (CHEMISTRY & YOU) 1 PRETEST 1. The science that tackles the study of matter‚ its structure and the changes in composition that matter undergoes is a. Astrology c. Ecology b. Chemistry d. Physics 2. When a chemist performs an experiment‚ the quantity that is being tested is the a. control c. theory b. law d. variable 3. Juan is comparing how many kilos of rice can be contained in a sack. What process is he doing? a. counting c. measurement b. interpolation
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Chemistry (the etymology of the word has been much disputed)[1] is the science of matter and the changes it undergoes. The science of matter is also addressed by physics‚ but while physics takes a more general and fundamental approach‚ chemistry is more specialized‚ being concerned with the composition‚ behavior (or reaction)‚ structure‚ and properties of matter‚ as well as the changes it undergoes during chemical reactions.[2] It is a physical science which studies various substances‚ atoms‚ molecules
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