4 - Lecture 4 Nuclear Chemistry Reading was Chapter...

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1 Lecture 4: Nuclear Chemistry Reading was: Chapter 23.1-23.3
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This Week and Next Week No Class Monday – Labor Day. No Class Tuesday (all sections miss one lecture) Prelab Questions - Chapter 2 Reactions in Aqueous Solutions Textbook material that will be helpful: section 2.8 and 4.1-4.4. Read this before lab Go to recitation to go over the lab! Blackboard – folder with lab info. and references
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3 From Your Reading - Question #1 How many nucleons are in an 19 F nucleus? (Answer with a number.) 9
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4 Types of decay α – a helium nucleus, 4 2 He β – an electron, 0 -1 e γ – a photon, no charge, no mass Neutron – 1 0 n Elements undergo decay:
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5 Nuclear Equations – Question 2 Which change involves alpha-decay ? a. 98 43 Tc 98 44 Ru b. 229m 90 Th 229 90 Th c. 212 84 Po 208 82 Pb
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Balancing Equations - Question #3 Σ reactant charges = Σ product charges Σ reactant mass numbers = Σ product mass numbers Identify the atomic number of X. 25
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This note was uploaded on 02/17/2012 for the course CHM 115 taught by Professor Towns during the Fall '08 term at Purdue.

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4 - Lecture 4 Nuclear Chemistry Reading was Chapter...

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