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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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QUESTION 3
Element X has 5 isotopes. Out of every 220 X atoms, 11 atoms have a mass of 176 u, 41.8 atoms
3.1
have a mass of 177 u, 59.4 atoms have a mass of 178 u, and the other two have a mass of 179 u
и,
and 180 u. The relative atomic mass of X is 178.49 u.
a. Calculate the percentage abundance of 179X and180x.
b.
Write the name (not the symbol) of the element in question.
Write the nuclide symbol of the most abundant isotope of this
element.
с.
Transcribed Image Text:QUESTION 3 Element X has 5 isotopes. Out of every 220 X atoms, 11 atoms have a mass of 176 u, 41.8 atoms 3.1 have a mass of 177 u, 59.4 atoms have a mass of 178 u, and the other two have a mass of 179 u и, and 180 u. The relative atomic mass of X is 178.49 u. a. Calculate the percentage abundance of 179X and180x. b. Write the name (not the symbol) of the element in question. Write the nuclide symbol of the most abundant isotope of this element. с.
Expert Solution
Step 1

Let the number of atoms be x of 179u Isotope, then number of atoms of 180u isotope will be 220 -(11+ 41.8+59.4+x) = (107.8 - x).

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