Experiment #: 1 Date: September 18‚ 2013 Title: Isotopes of Paperclipium Purpose: To determine the isotopic composition of the element‚ paperclipium. Background Information: Isotopes are atoms of the same element with the same proton number but different mass number; that is‚ the number of neutrons differ. Isotopes of the same element have the same electronic configuration as they have the same number of electrons. This accounts for the fact that their chemical properties are the same‚ as the
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The Half-Life of a Radioisotope: 10-22-14 Abstract: The half-life of a radioisotope is the time required for half the atoms in a given sample to undergo radioactive‚ or nuclear decay. The amount of radioactive isotope remaining can be calculated using the equation‚ t1/2 = .693/K. A sample data set was provided due to safety concerns. Using the data set‚ a half-life of 14.27days -1 was calculated using graphical linear regression analysis. Introduction: The purpose of this experiment is to
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Half-Life of M&Ms Introduction Half-life is the time required for something to fall to half its initial value. The half-life of a radioactive element is the time it takes for half of its atoms to decay into something else. M&Ms were chosen because they all have the same m mark on the on one side. In this lab you will go through predicting and counting the number of remaining "mark-side up" candies that should help understand that rates of decay of unstable nuclei and how it can be measured;
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Isotopes Any of two or more forms of a chemical element‚ having the same number of protons in the nucleus‚ but having different numbers of neutrons are called isotopes. Some isotopes are unstable‚ especially those with a lot of neutrons compared to the number of protons in the nucleus. These isotopes tend to eject some particles‚ in the form of radiation‚ until a stable nucleus is produced; this is called the radioactive decay. Four isotopes as well as their uses are mentioned subsequently.
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fossils and rocks‚ * scientists analyze isotopes of radioactive elements. Isotopes * atoms of the same element that have the same number of protons but different numbers of neutrons. * Most isotopes are stable‚ meaning that they stay in their original form. * Other isotopes are unstable. * Scientists call unstable isotopes radioactive. Radioactive decay * Radioactive isotopes tend to break down into stable isotopes of the same or other elements. * Refers
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Atomic Dating Using Isotopes Answer the following questions about the results of this activity. Record your answers in the boxes. Send your completed lab report to your instructor. Dont forget to save your lab report to your computer Reference Isotope Half-Life Chart Isotope ProductHalf LifeCarbon-14Nitrogen-145730 years Potassium - 40Argon - 401‚280 million yearsRubidium - 87Strontium -8 748‚800 million yearsThorium - 232 Lead 20814‚010 million yearsUranium - 235 Lead - 297704 million yearsUranium
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INTRODUCTION Radioactive emissions are electromagnetic radiations which occur due to the spontaneous disintegration of unstable nuclei. Natural elements with atomic number greater than 83 and isotopes of some lighter elements are found to be radioactive. They are categorized as alpha‚ beta and gamma radiations. Alpha particles are positively charged helium-4 nuclei ‚ beta particles are high energy-high speed electrons while gamma rays unlike alpha and beta radiation have no mass and charge and
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the other half lives" was published in October 1890 and this book proved this quote true " Every thing that glitters is not gold ( Shakespeare)" Jacob Riis writer of this book showed the reality of New York and proved that life was not only rich and amazing in New York. He showed the other side of a picture which was unknown by most of the people lived in America. In this book Jacob Riis wrote about the slum life in New York specially life of poor immigrants. He also showed their life style and
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A life that has not fully reached the peak of success‚ and though willing to move forward‚ still ponders about the past and thinks about the limited time that life has left. Mezzo Cammin is a look into a life that has not been fully lived and has reached a point to where time is valuable‚ almost as much as obtaining a success or self righteousness of some kind. The author uses literary devices that captivate the reader and help explain the point by expressing his feelings and thoughts through words
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I found out from this experiment that half-life means just what it sounds like. After each cycle of half-life‚ the number of coins left was about half. Each coin represents an atom and just like in nature the half-life of decay is half depending what the element’s half-life is. If each of the scatter test was 10 years‚ the element we are testing would have a half-life of 10 years. The amount of time for a half-life depends on the elements‚ and how tightly the atoms are packed together. Some other
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