Austin Dobrzynski Chem 1 10/11/14 Copper Ch. 3 Isotope Paper Copper In humans‚ copper is essential to the proper functioning of organs and metabolic processes. The human body has a complex homeostatic mechanism that lets us supply copper‚ while eliminating excess copper whenever this occurs. The dietary standards for copper have been set by various health agencies around the world. Standards adopted by some nations recommend different copper intake levels for adults
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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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Radioactive Isotopes Radioactive isotopes are any of several species of the same chemical element with different masses whose nuclei are unstable and dissipate excess energy by spontaneously emitting radiation in the form of alpha‚ beta‚ and gamma rays. Every chemical element has one or more radioactive isotopes. More than 1‚000 radioactive isotopes of the various elements are known.. Approximately 50 of the isotopes are found in nature; the rest are produced artificially as the direct products
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Radioactive Isotopes An isotope is one of two or more atoms with the same number of protons‚ and position in the periodic table‚ but different number of neutrons and physical properties. Isotopes have an unstable nucleus that decay suddenly by a release of nuclear electrons and radiation. This essay will be discussing one of the applications and uses of the radioactive isotopes‚ and it will also state one problem that radioactive isotopes can address. The radiation characteristically
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The Effect of Different Isotopes on Atomic Mass Introduction: An isotope is a variation of an atom that already exists. An isotope is different from an atom because of the number of neutrons in its nucleus. Finding the amount of neutrons in an atom can be calculated by subtracting the atomic number of a specific atom from its atomic mass. When looking at the periodic table‚ the atomic mass in the top left corner of every box is a decimal. The mass is in decimal format because the number listed
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Reminders: 1. In a neutral atom the number of protons equals the number of electrons. 2. An atom can NEVER gain or lose protons 3. The number of protons equals the atomic number NAME:________________________________________ Ion Practice Set 1. What is an ion? 2. What does the number next to the ions signify? Complete the following table‚ using the periodic table in the back of your book. ELEMENT NAME ION SYMBOL NUMBER OF PROTONS NUMBER OF ELECTRONS NUMBER OF ELECTRONS LOST OR GAINED ex Fluorine
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Dating - An Issue of Personal Choice First there was the passing notes‚ hand holding and name-calling of middle school. Then you survived your first heartbreak when your high school sweetheart decided it would be best to be “just friends.” Now swept away in college life‚ with an important aspect being dorm life‚ you hardly take the time to step back and ask yourself‚ “What am I doing here? Who’s bed did I just wake up in‚ and how the hell did I get here?!” Okay‚ so the second part may not be
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Radioactive Isotopes Radioactive Isotopes Medical isotopes are used in medicine in three distinct ways: 1. Radioactive isotopes can be injected into a patient‚ and their emitted energy can then be captured on film. The resulting image is an important diagnostic tool. 2. Gamma rays emitted from a radioactive source can be directed onto a tumour‚ destroying the cancerous cells. 3. Radioactive isotopes can be manufactured into drugs. Once injected into a patient‚ the drug will
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As sex is socially acceptable in this day in age‚ there are many abstinence speakers who travel around the globe teaching teenagers and young adults of the perils of having sex outside of marriage. The best abstinence speaker I have heard is Brad Henning; in his speech/video‚ Don’t Take Love Lying Down‚ he goes into depth on the effects of having premarital sex‚ and how the consequences outweigh the momentary pleasure. For myself‚ I definitely do not plan on having sex before marriage‚ and I
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Before there were any true scientific dating methods‚ scientists depended on their past archives of fossils and strata in order to determine how old a newly found fossil was. However‚ it wasn’t until the mid 20th century that scientists could abandon this pathetic‚ inaccurate process and move into a more acceptable precise and detailed procedure. The old way was done by comparing one fossil to other fossils found in the same layer of the earth’s ground and studying the physical characteristics of
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