An unknown element (Uk) has three isotopes, seen in the table. One of the percentage values is missing. Percent Isotope Notation Mass (amu) Abundance (%) Uk-66 65.994 57.00 Uk-69 68.958 13.00 Uk-71 70.975 ? Once you have found the missing percentage, calculate the average atomic mass of Uk. Enter your answer to the hundredths place.

An unknown element (Uk) has three isotopes, seen in the table. One of the percentage values is missing. Percent Isotope Notation Mass (amu) Abundance (%) Uk-66 65.994 57.00 Uk-69 68.958 13.00 Uk-71 70.975 ? Once you have found the missing percentage, calculate the average atomic mass of Uk. Enter your answer to the hundredths place.

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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