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100% Normal text Oxygen 12 ... 3. The atomic masses of elements are generally not whole numbers. Explain why. 4. Which of argon's three isotopes is most abundant: argon-36, argon-38, or argon-40? (Hint: the atomic mass of argon is 39.948amu.) 5. The four isotopes of lead are shown below, each with its percent by mass abundance and the composition of its nucleus. Using these data, determine which isotope is the most abundant. Be sure to state why. 82p 122n 82p 125al

100% Normal text Oxygen 12 ... 3. The atomic masses of elements are generally not whole numbers. Explain why. 4. Which of argon's three isotopes is most abundant: argon-36, argon-38, or argon-40? (Hint: the atomic mass of argon is 39.948amu.) 5. The four isotopes of lead are shown below, each with its percent by mass abundance and the composition of its nucleus. Using these data, determine which isotope is the most abundant. Be sure to state why. 82p 122n 82p 125al

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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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100% Normal text Oxygen 12 ... 3. The atomic masses of elements are generally not whole numbers. Explain why. 4. Which of argon's three isotopes is most abundant: argon-36, argon-38, or argon-40? (Hint: the atomic mass of argon is 39.948amu.) 5. The four isotopes of lead are shown below, each with its percent by mass abundance and the composition of its nucleus. Using these data, determine which isotope is the most abundant. Be sure to state why. 82p 122n 82p 125n 1.4% 22.1% 82p 124n 82p 126n 24.1% 52.4% IN
Transcribed Image Text:100% Normal text Oxygen 12 ... 3. The atomic masses of elements are generally not whole numbers. Explain why. 4. Which of argon's three isotopes is most abundant: argon-36, argon-38, or argon-40? (Hint: the atomic mass of argon is 39.948amu.) 5. The four isotopes of lead are shown below, each with its percent by mass abundance and the composition of its nucleus. Using these data, determine which isotope is the most abundant. Be sure to state why. 82p 122n 82p 125n 1.4% 22.1% 82p 124n 82p 126n 24.1% 52.4% IN
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