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A sample of lead isotope Pb decays by emitting an alpha particle to form the nuclide W. If the half- life of the lead isotope is 3 hours, which of the following statements is/are correct? 1. W has an atomic mass of 205 2. The atomic number of W is 80 3. After 6 hours, 50% of the lead isotope would have decayed. 40. A B

A sample of lead isotope Pb decays by emitting an alpha particle to form the nuclide W. If the half- life of the lead isotope is 3 hours, which of the following statements is/are correct? 1. W has an atomic mass of 205 2. The atomic number of W is 80 3. After 6 hours, 50% of the lead isotope would have decayed. 40. A B

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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A sample of lead isotope Pb decays by emitting an alpha particle to form the nuclide W. If the half- life of the lead isotope is 3 hours, which of the following statements is/are correct? 209 40. 82 1. W has an atomic mass of 205 2. The atomic number of W is 80 3. After 6 hours, 50% of the lead isotope would have decayed. A. BCD
Transcribed Image Text:A sample of lead isotope Pb decays by emitting an alpha particle to form the nuclide W. If the half- life of the lead isotope is 3 hours, which of the following statements is/are correct? 209 40. 82 1. W has an atomic mass of 205 2. The atomic number of W is 80 3. After 6 hours, 50% of the lead isotope would have decayed. A. BCD
Directions summarised A B 1,2,3 1,2 2,3 Only All Only Only correct correct correct correct
Transcribed Image Text:Directions summarised A B 1,2,3 1,2 2,3 Only All Only Only correct correct correct correct
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