strongest of the four forces‚ because of its tiny range the strong force cannot be directly detected in macroscopic bodies. The Weak Nuclear Force doesn’t so much hold things together as break them apart. The weak force is behind the processes of radioactive decay‚ when an unstable nucleus splits into two or more pieces. One important process in particular it is responsible for is beta decay. This happens when a neutron emits an electron and transforms itself into a proton‚ changing the atom into another
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http://www.kewpid.com 1. Fossil fuels provide both energy and raw materials such as ethylene‚ for the production of other substances 1) Construct word and balanced chemical equations of chemical reactions as they are encountered • Methane + oxygen carbon dioxide + water • CH4(g) + 2O2(g) CO2(g) + 2H2O(l) 2) Identify the industrial source of ethylene from the cracking of some of the fractions from refining of petroleum Generally‚ demand for petrol exceeds supply produced from fractional distillation
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miscarry or give birth to children with disabilities ("The Effects of Nuclear Weapons"). However‚ these ‘long’-term effects on the human body are still relatively short term. Currently‚ the long-term genetic consequences from a massive release of radioactive fallout on a worldwide basis is unknown (“Effects of Nuclear Weapons"): these long-term consequences could be something one would see in a apocalyptic TV series‚ or it could be something entirely. One thing is certain: the long-term effects of nuclear
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by the electrons in the outer shell d. lest than the sum of the charges of the protons in tire nucleus due to nisielding by the electrons in the lower‚ filled shells a. greater than the suns of the charges on the protons in the nucleus 4. isotopes are a. atonts with the same nutotber of neutrons but different nuntbers of protons b. atoms seitls the same number of protons but different numbers of neutrons c. atoms witls tire same sum of neutrons plus protons but different numbers of neutrons
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The Origin and Evolution of Life on Earth Why do we start the discussion of biology with a discussion of geology? Here are some reasons why one would do this: * All life on earth is linked to geology; likewise‚ many surface geologic features and processes have been influenced by life on earth. The origin and early evolution of the earth are especially important when looking at the origin and early evolution of life on earth. * Life chemistry had its origin with the elements available to
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CHEMISTRY 4 MRS. ALINGER ELEMENT RESEARCH PAPER NOVEMBER 25‚ 2014 Kara Link Mrs. Alinger Chemistry 4 25 November 2014 Krypton: The “Super Element” When you first hear the word “Krypton”‚ you may think of the fictional planet that America’s superhero Superman once called home. However‚ krypton is also the name of a chemical element here on our own planet Earth. Though it is a rare‚ unreactive noble gas‚ krypton does play a significant role in today’s world in ways that are unfamiliar to most
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From 1928 to 1952‚ experiments done by Frederick Griffith‚ Oswald Avery‚ Alfred Hershey‚ and Martha Chase all did experiments that contributed to the discovery of the DNA. Frederick Griffith experiment was done in 1928‚ Oswald Avery’ was done during the early 1940’s‚ and Alfred Hershey’s with help from Martha Chase was done in 1952. All of these experiments contributed to the idea known as translation‚ the process of cell ribosomes converting proteins to messenger RNA‚ or mRNA. Because of how they
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1. Who are the authors? (Where are they doing their research? What kinds of research are they known for? What other things have they done?) Adam Hadhazy is a freelance science writer based in New Jersey. He is known for his research and reports on astronomy‚ biology and psychology; he has written other works such as‚ “Where Does the Period Table End?” which was published in discover magazine and‚ “The Reality of ‘Silicon Valley’” which was published in popular science. (Hadhazy) 2. What is the main
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found as a solid and is most commonly found as a byproduct to mining iron and nickel‚ and is only classified as cobalt for about 40 days after being harvested. Even more information about this fascinating element would be that it is an artificial isotope‚ is an important gamma ray source‚ and is extensively used as a tracer and a radio therapeutic agent. Other uses that are more close to home if you will would be that it can be used for high-speed‚ heavy-duty‚ high temperature cutting tools‚ and for
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been proven to have a negative effect on plants and the environment. Ruthenium is the only group eight element not to have two electrons in its outer shell. There are seven natural and stable isotopes of ruthenium‚ in addition to thirty-four radioisotopes. Furthermore‚ the most stable of its radioactive isotopes only has a half-life of 373 days‚ while most of the others
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