Introductory Chemistry: A Foundation
9th Edition
ISBN: 9781337399425
Author: Steven S. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Chapter 19, Problem 49QAP
. How do the forces that hold an atomic nucleus together compare in strength with the forces between atoms in a molecule?
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Describe the forces acting on the particles within a nucleus and explain whyneutrons are the glue holding the nucleus together.
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Chapter 19 Solutions
Introductory Chemistry: A Foundation
Ch. 19.1 - Prob. 1CTCh. 19.1 - Prob. 19.1SCCh. 19.1 - Prob. 19.2SCCh. 19.3 - Exercise19.3Watches with numerals that glow in the...Ch. 19.8 - Prob. 1CTCh. 19 - Prob. 1ALQCh. 19 - Prob. 2ALQCh. 19 - Prob. 3ALQCh. 19 - Prob. 4ALQCh. 19 - Prob. 5ALQ
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- 2.86 For some uses, the relative abundance of isotopes must be manipulated. For example, a medical technique called boron neutron capture therapy needs a higher fraction of 10B than occurs naturally to achieve its best efficiency. What would happen to the atomic weight of a sample of boron that had been enriched in 10B? Explain your answer in terms of the concept of a weighted average.arrow_forwardHow did the charge distribution in the plum pudding model affect alpha particles passing through an atom?arrow_forwardWho discovered the nucleus? Describe the experiment that led to this discovery.arrow_forward
- What is the charge of the nucleus of element 89?arrow_forwardIt is good practice to actively read the textbook and to try to verify claims that are made when you can. The following claim is made in your textbook: “. . . if the nucleus were the size of a grape, the electrons would be about 1 mile away on average.” Provide mathematical support for this statement.arrow_forward2.10 Which isotope in each pair contains more neutrons? (A) 35Cl or 33S, (b) 19F or 19Ne, (c) 63Cu or 65Zn, (d) 126I or 127Tearrow_forward
- Define the term atomic weight. Why might the values of atomic weights on a planet elsewhere in the universe be different from those on earth?arrow_forward2.19 Naturally occurring uranium consists of two isotopes, whose masses and abundances are shown below: Only 235U can be used as fuel in a nuclear reactor, so uramium for use in the nuclear industry must be enriched in this isotope. If a sample of enriched uranium has an atomic weight of 235.684 amu, what percentage of 235LT is present?arrow_forwardCalculate the molar mass (atomic weight) of naturally occurring uranium from the masses of the two major isotopes of uranium (235U = 235.0409; 238U = 238.0508) and their natural abundances.arrow_forward
- For the following isotopes that have missing information, fill in the missing information to complete the notation (a) X1434 (b) PX36 (c) MX57n (d) X56121arrow_forwardWrite appropriate symbols for the following particles using the ZAX symbolism: a.A tin-117 nucleus b.A nucleus of the chromium (Cr) isotope containing 26 neutrons c.A nucleus of element number 20 that contains 24 neutronsarrow_forwardWhat are black holes, and how does their existence relate to the internal structure of atoms?arrow_forward
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