Section 1: What is radioactivity? Nuclear Radiation During radioactive decay‚ the unstable nuclei of these isotopes emit particles‚ or release energy‚ to become stable isotopes‚ as Figure 1 shows. After radioactive decay‚ the element changes into a different isotope of the same element or into an entirely different element. Recall that isotopes of an element are atoms that have the same number of protons but different numbers of neutrons in their nuclei. Different elements are distinguished
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The process involves administering radioactive materials to the patient‚ with the ability to localize this material to a specific organ. (Department of Nuclear Medicine - Austin Hospital‚ 2007) This then allows the specialists to map an organ’s cellular function‚ instead of the physical changes in it’s tissue which more traditional imaging techniques such as X-ray reveal. (DNM‚ 2007) Although being highly effective in its application‚ the use of radioactive substances poses an inherent risk to
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SUBMITTED BY: Teresita C. Ojastro SUBMITTED TO: Mrs. Pilar M. Macabinguil MALOH PROVINCIAL COMMUNITY HIGH SCHOOL DUMAGUETE CITY NEGROS ORIENTAL 6200 Mrs. Pilar M. Macabinguil ENGLISH IV Teacher MPCHS Madam: In partial fulfillment of the requirement in ENGLISH IV‚ I hereby present to you my term paper entitled “What is Radiation?” This term paper presents a research study on the importance about radiation and how
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(_92^238)U Protons = 92‚ electrons = 92‚ neutrons = 238 – 92= 146 Isotopes Isotopes are atoms of the same element which have the same number of protons but different numbers of neutrons. That is‚ their proton numbers are the same but their nucleon numbers are different. Examples Hydrogen: (_1^1)H: (_1^2)H: (_1^3)H Carbon: (_6^12)C: (_6^14)C Chlorine: (_17^35)Cl: (_17^37)Cl Uranium : (_92^235)U: (_92^238)U Isotopes have the same chemical properties because they have same number of protons
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Yafaa Chaudhary PHYSICS 5 NOTES Physics 5 3.5.1 Radioactivity Evidence for the nucleus Qualitative study for the Rutherford scattering. Rutherford directed a narrow beam of α-particles‚ all of the same kinetic energy‚ in an evacuated container at a thin gold film‚ in order to identify the structure of an atom: The α-particles need to be of the same kinetic energy otherwise slow α-particles would be deflected more than faster α-particles on the same initial path. The container needs to be evacuated
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Chapter 4 The Chemical Basis of Life Introduction Your body is an elaborate chemical system. Chemical signals between brain less enable your mind to understand what you see. You nourish those cells with chemicals that are obtained from food. Life is all about chemicals and how they interact Concept 4.1 Life requires about 25 chemical elements Elements Humans and other organisms are examples of matter. Matter: Anything that occupies space and has mass. (Physical
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medicine. There are also some additional areas where we can use radiation which include cancer and commonly called therapy. A subspecialty in nuclear medicine is nuclear medicine therapy. A common example of nuclear medicine therapy is the use of radioactive iodine to treat thyroid problems‚ including thyroid cancer. It also used in oncology which is the branch who works on treatment of cancer. Figure 1.2 x ray view
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How Are They Made?What are isotopes?The isotopes of an element are all the atoms that have in their nucleus the number of protons (atomic number) corresponding to the chemical behavior of that element. However‚ the isotopes of a single element vary in the number of neutrons in their nuclei. Since they still have the same number of protons‚ all these isotopes of an element have identical chemical behavior. But since they have different numbers of neutrons‚ these isotopes of the same element may have
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medical uses the patient is injected with the radioactive isotope‚ it is important that the dose is minimal and that low levels of radiation are emitted and therefore not remain long in the body. The radioactive isotope needs to have a very short-half life and is used to irradiate and kill cancer cells within the patient. The rays emitted have to be carefully targeted so that it doesn’t kill the surrounding healthy tissue. Radioactive Waste: Radioactive waste needs to be stored safely for long periods
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Banting Contents No | Contents | Page | 1. | Appreciation | | 2. | Introduction | | 3. | Analysis : - Nucleus Of An Atom - Radioactive Decay - The Uses Of Radioisotopes - Nuclear Energy - The Importance Of Proper Management Radioactive Substances | | 4. | Conclusion | | 5. | References | | Appreciation Assalamualikum‚ Firstly‚ I want to show my appreciation to Encik Atan Bin
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