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An element consists of 1.40% of an isotope with mass 203.9730 u, 24.10% of an isotope with mass 205.9745 u, 22.10% of an isotope with mass 206.9759 u, and 52.40% of an isotope with mass 207.9766 u. a Calculate the average atomic mass. Average atomic mass = 207.216 u The average atomic mass for an unknown element is 1.40% 24.10% 22.10% x 203.9730 u + x 205.9745 u+ x 206.9759 u + 100% 100% 100% 52.40% + 100% x 207.9766 u = 2.856 u + 49.640 u + 45.742 u + 108.98 u = 207.22 = 207.2 u b Identify an element.

An element consists of 1.40% of an isotope with mass 203.9730 u, 24.10% of an isotope with mass 205.9745 u, 22.10% of an isotope with mass 206.9759 u, and 52.40% of an isotope with mass 207.9766 u. a Calculate the average atomic mass. Average atomic mass = 207.216 u The average atomic mass for an unknown element is 1.40% 24.10% 22.10% x 203.9730 u + x 205.9745 u+ x 206.9759 u + 100% 100% 100% 52.40% + 100% x 207.9766 u = 2.856 u + 49.640 u + 45.742 u + 108.98 u = 207.22 = 207.2 u b Identify an element.

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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An element consists of 1.40% of an isotope with mass 203.9730 u, 24.10% of an isotope with mass 205.9745 u, 22.10% of an isotope with mass 206.9759 u, and 52.40% of an isotope with mass 207.9766 u. a Calculate the average atomic mass. Average atomic mass = 207.216 u The average atomic mass for an unknown element is 1.40% 24.10% 22.10% x 203.9730 u + x 205.9745 u+ x 206.9759 u + 100% 100% 100% 52.40% x 207.9766 u = 2.856 u + 49.640 u + 45.742 u + 108.98 u 100% = 207.22 = 207.2 u b Identify an element.
Transcribed Image Text:An element consists of 1.40% of an isotope with mass 203.9730 u, 24.10% of an isotope with mass 205.9745 u, 22.10% of an isotope with mass 206.9759 u, and 52.40% of an isotope with mass 207.9766 u. a Calculate the average atomic mass. Average atomic mass = 207.216 u The average atomic mass for an unknown element is 1.40% 24.10% 22.10% x 203.9730 u + x 205.9745 u+ x 206.9759 u + 100% 100% 100% 52.40% x 207.9766 u = 2.856 u + 49.640 u + 45.742 u + 108.98 u 100% = 207.22 = 207.2 u b Identify an element.
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