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Isotopes

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Sections
Periodic Table	28 mins	0 completed	Learn
Mole Concept	37 mins	0 completed	Learn Summary
Isotopes	12 mins	0 completed	Learn Summary
Mass Spectrometry	9 mins	0 completed	Learn
Subatomic Particles	8 mins	0 completed	Learn
Atomic Theory	16 mins	0 completed	Learn
Thomson's Cathode Ray Tube Experiment	8 mins	0 completed	Learn
Oil Drop Experiment	7 mins	0 completed	Learn
The Chadwick Neutron Experiment	6 mins	0 completed	Learn
Gold Foil Experiment	10 mins	0 completed	Learn
End of Chapter 2 Problems	28 mins	0 completed	Learn

Additional Guides
Periodic Table Charges
Calculating Molar Mass
Calculating Grams to Moles

Learn Additional Practice Summary

Next SectionMass Spectrometry

Solution: The element X has three naturally occuring isotopes; aX, bX, and cX, where a, b, and c represent the mass number. The masses (amu),except aX, and the percent abundances of the isotopes are given in the table below. The average atomic mass of X is 17.20 amu. What is the mass of aX in amu? a. 16.60 b. 16.67 c. 19.01 d. 18.11 e. 9.99

Problem

The element X has three naturally occuring isotopes; ^aX, ^bX, and ^cX, where a, b, and c represent the mass number. The masses (amu),except ^aX, and the percent abundances of the isotopes are given in the table below. The average atomic mass of X is 17.20 amu. What is the mass of ^aX in amu?

a. 16.60

b. 16.67

c. 19.01

d. 18.11

e. 9.99

Isotopes

Problem

Practice Problems

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