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A. Solve the following problems and support your answers with explanation. 1. How many protons, neutrons and electrons are present in Hg 2. Which of the following is an alpha particle? a. Sy b. je c. fe d. Ne e. in 3. What element would be formed if thorium-230 undergoes alpha decay?

A. Solve the following problems and support your answers with explanation. 1. How many protons, neutrons and electrons are present in Hg 2. Which of the following is an alpha particle? a. Sy b. je c. fe d. Ne e. in 3. What element would be formed if thorium-230 undergoes alpha decay?

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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A. Solve the following problems and support your answers with explanation. 1. How many protons, neutrons and electrons are present in Hg 2. Which of the following is an alpha particle? a. Sy b. je c. fe d. He e. n 3. What element would be formed if thorium-230 undergoes alpha decay? 4. What element would be produced if Iodine-131 undergoes beta decay? 5. Which of the following processes converts neutron into a proton? a. alpha decay c. gamma decay e. electron b. positron production d. beta decay 6. Identify the unknown element 꽃 + in → 3He + 2-fe + ? 7. Which of the following elements will most likely undergo radioactive decay? a. carbon-12 b. nitrogen-14 c. carbon-14 d. oxygen-16 e. neon-20 8. Complete the following nudlear reactions: a. BA! + He > p b. cu 2 n + c. Ca se + ? d. u ? He e. Ra + f. Cm + -fe > ? + Y g. 40 + ? h. 14c + N + ? B. Radioactive Decay 1. The half-life of Zn-71 is 2.4 minutes. If one had 100.0 g at the beginning, how many grams would be left after 7.2 minutes has elapsed? 2. Pd-100 has a half-life of 3.6 days. If one had 6.02 x 103 atoms at the start, how many atoms would be present after 20.0 days? 3. After 24.0 days, 2.00 milligrams of an original 128.0 milligram sample remain. What is the half-life of the sample? 4. U-238 has a half-life of 4.46 x 10° years. How much U-238 should be present in a sample 2.5 x 10° years old, if 2.00 grams was present initially? 5. Technetium-99m is used to form pictures of internal organs in the body and is often used to assess heart damage. The m for this nuclide indicates an excited nuclear state that decays to the ground state by gamma emission. The rate constant for decay of 99Te is known to be 1.16 x 101 /hr. What is the half-life of this nuclide? C. MASS DEFECT AND BINDING ENERGY 1. Calculate the binding energy (in Mev) of an x-particle. Mass of He is 4.0028 amu 2. 0-16 atom has 8p, 8n and 8e. Its mass is 15.994 amu. Find the mass defect and binding energy per nucleon. 3. Calculate the binding energy per mole of a U-235 isotope. Show your answer in KI/mole.
Transcribed Image Text:A. Solve the following problems and support your answers with explanation. 1. How many protons, neutrons and electrons are present in Hg 2. Which of the following is an alpha particle? a. Sy b. je c. fe d. He e. n 3. What element would be formed if thorium-230 undergoes alpha decay? 4. What element would be produced if Iodine-131 undergoes beta decay? 5. Which of the following processes converts neutron into a proton? a. alpha decay c. gamma decay e. electron b. positron production d. beta decay 6. Identify the unknown element 꽃 + in → 3He + 2-fe + ? 7. Which of the following elements will most likely undergo radioactive decay? a. carbon-12 b. nitrogen-14 c. carbon-14 d. oxygen-16 e. neon-20 8. Complete the following nudlear reactions: a. BA! + He > p b. cu 2 n + c. Ca se + ? d. u ? He e. Ra + f. Cm + -fe > ? + Y g. 40 + ? h. 14c + N + ? B. Radioactive Decay 1. The half-life of Zn-71 is 2.4 minutes. If one had 100.0 g at the beginning, how many grams would be left after 7.2 minutes has elapsed? 2. Pd-100 has a half-life of 3.6 days. If one had 6.02 x 103 atoms at the start, how many atoms would be present after 20.0 days? 3. After 24.0 days, 2.00 milligrams of an original 128.0 milligram sample remain. What is the half-life of the sample? 4. U-238 has a half-life of 4.46 x 10° years. How much U-238 should be present in a sample 2.5 x 10° years old, if 2.00 grams was present initially? 5. Technetium-99m is used to form pictures of internal organs in the body and is often used to assess heart damage. The m for this nuclide indicates an excited nuclear state that decays to the ground state by gamma emission. The rate constant for decay of 99Te is known to be 1.16 x 101 /hr. What is the half-life of this nuclide? C. MASS DEFECT AND BINDING ENERGY 1. Calculate the binding energy (in Mev) of an x-particle. Mass of He is 4.0028 amu 2. 0-16 atom has 8p, 8n and 8e. Its mass is 15.994 amu. Find the mass defect and binding energy per nucleon. 3. Calculate the binding energy per mole of a U-235 isotope. Show your answer in KI/mole.
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