Element X has 5 isotopes. One of the isotopes has a mass of 120.6 with an abundance of 8.4%. The second isotope with a mass of 123.7 and an abundance of 55.3%. Two other isotopes each have an abundance of 12.9% and masses of 127.4 and 131.5. The final isotope is 10.5% abundant with a mass of 136.0. Calculate the average Atomic Mass of element X. Give your answer to the nearest tenth (one decimal).

Element X has 5 isotopes. One of the isotopes has a mass of 120.6 with an abundance of 8.4%. The second isotope with a mass of 123.7 and an abundance of 55.3%. Two other isotopes each have an abundance of 12.9% and masses of 127.4 and 131.5. The final isotope is 10.5% abundant with a mass of 136.0. Calculate the average Atomic Mass of element X. Give your answer to the nearest tenth (one decimal).

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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