Chapter 19, lecture 1

Chapter 19, lecture 1 - NUCLEAR CHEMISTRY Page 5 CHAPTER 19...

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CHAPTER 19 NUCLEAR CHEMISTRY Page 1 A NUCLEUS WITH A SPECIFIED # PROTONS & NEUTRONS IS CALLED A NUCLIDE.
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CHAPTER 19 NUCLEAR CHEMISTRY Page 2 THE EQUATION FOR A NUCLEAR REACTION MUST BE BALANCED WITH RESPECT TO ATOMIC NUMBERS AND MASS NUMBERS. NUCLEAR DECAY PRODUCTS: ALPHA PARTICLES HELIUM NUCLEII BETA PARTICLES ELECTRONS GAMMA RADIATION HIGH ENERGY RADIATION POSITRON EMISSION EXAMPLES OF NUCLEAR REACTIONS:
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CHAPTER 19 NUCLEAR CHEMISTRY Page 3 EXAMPLE 19.1 Give the products of the following nuclear reactions: a) alpha emission of Rn b) Beta emission from Phosphorus-32 c) Gamma emission from aluminum-26
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CHAPTER 19 NUCLEAR CHEMISTRY Page 4 KINETICS OF RADIOACTIVE DECAY
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CHAPTER 19
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Unformatted text preview: NUCLEAR CHEMISTRY Page 5 CHAPTER 19 NUCLEAR CHEMISTRY Page 6 EXAMPLE 19.2 24 Na is used for studies of the circulatory system. It emits - particles. a) What is the decay constant (in sec-1 ) for 24 Na ? b) What is the activity of a freshly synthesized 1.00 mg sample of 24 Na ? c) What will be the decay rate after one week ? CHAPTER 19 NUCLEAR CHEMISTRY Page 7 EXAMPLE 19.4 A wooden object from an Egyptian tomb is subjected to radiocarbon dating. The decay rate for the Carbon-14 was determined to be 7.2 dis/min per g of carbon. What is the age of the object ? t = 5730 years and the decay rate is 15 dis/min per g carbon....
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Chapter 19, lecture 1 - NUCLEAR CHEMISTRY Page 5 CHAPTER 19...

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