The natural abundance of 3He is 0.000137%. (a) How manyprotons, neutrons, and electrons are in an atom of 3He?(b) Based on the sum of the masses of their subatomic particles,which is expected to be more massive, an atom of 3He oran atom of 3H (which is also called tritium)? (c) Based on youranswer to part (b), what would need to be the precision of amass spectrometer that is able to differentiate between peaksthat are due to 3He+ and 3H+?

a. The number of protons = 2 The number of electrons = 2 and The number of neutrons = 3-2 = 1

Answered: The natural abundance of 3He is…

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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The natural abundance of ³He is 0.000137%. (a) How many
protons, neutrons, and electrons are in an atom of ³He?
(b) Based on the sum of the masses of their subatomic particles,
which is expected to be more massive, an atom of ³He or
an atom of ³H (which is also called tritium)? (c) Based on your
answer to part (b), what would need to be the precision of a
mass spectrometer that is able to differentiate between peaks
that are due to ³He⁺ and ³H⁺?

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