The element antimony (Sb) has an atomic mass of 121.76 amu. Two naturally occurring isotopes of antimony are ¹²¹Sb (57% abundant) and ¹²³Sb (43% abundant). In a sample of 100 Sb atoms, what is the probability that a single selected atom has a mass of 121.76 amu? A.) 0% B.) 43% C.) 57% D.) 100% E.) Not possible to determine
The element antimony (Sb) has an atomic mass of 121.76 amu. Two naturally occurring isotopes of antimony are ¹²¹Sb (57% abundant) and ¹²³Sb (43% abundant). In a sample of 100 Sb atoms, what is the probability that a single selected atom has a mass of 121.76 amu? A.) 0% B.) 43% C.) 57% D.) 100% E.) Not possible to determine
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Chapter7: Quantum Theory Of The Atom
Section: Chapter Questions
Problem 7.111QP: In X-ray fluorescence spectroscopy, a material can be analyzed for its constituent elements by...
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The element antimony (Sb) has an
A.) 0%
B.) 43%
C.) 57%
D.) 100%
E.) Not possible to determine
Expert Solution
Step 1
The relative abundance of an isotope is the percentage of atoms with a specific atomic mass found in a naturally occurring sample of an element.
as given, 121-Sb is 57% abundant and 123-Sb is 43% abundant that means if 100 atoms of Sb is present out of that 57% are of 121-Sb and 43% of 123-Sb..
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