Chapter 19 – Nuclear Chemistry
114. When a 162Re nucleus emits an alpha particle, the nuclear species that results is
_____________.
Chapter 19 – Nuclear Chemistry
115.
Balance the equation
Chapter 19 – Nuclear Chemistry
116.
Balance the equation
Chapter 19 – Nuclear Chemistry
117. Select True or False: When tThorium-225 undergoes alpha decay the new atom produced
would be thorium-221
118.
Select True or False: When lead-209 undergoes beta decay the balanced nuclear equation for this reaction is:
119. Select True or False: Compared to chemical reactions nuclear reactions, in terms of the
quantity of energy released, have approximately one thousand times greater energy
production for comparable amounts.
Chapter 19 – Nuclear Chemistry
120. Select True or False: As opposed to chemical reaction, nuclear reactions have a
122. Select True or False: Cobalt-58 is less stable than cobalt-59.
Chapter 19 – Nuclear Chemistry
124. The alpha particles emitted by radon–222 have an energy of 8.8 10–13 J. If a 200. g Pb
brick absorbs 1.0 1010 alpha particles from radon decay, what dose in rads will the brick
absorb?
Chapter 19 – Nuclear Chemistry
125. Select True or False: Both H2O and D2O can be used as moderators to slow neutrons in
nuclear reactors.
126. What nuclear fuel is produced in a breeder reactor?
Chapter 19 – Nuclear Chemistry
127.
Calculate the binding energy per nucleon of an Al-27 nucleus given the following masses:
: 26.981541 amu; : 1.007838 amu; : 1.008665 amu.
128. Select True or False: The definition of free radicals is molecular fragments having one
or more unpaired electrons.
Chapter 19 – Nuclear Chemistry
129. The fundamental unit of radioactivity is the ______ .
130.
Select True or False: The following nuclear equation is correctly balanced:
Chapter 19 – Nuclear Chemistry
131. Select True or False: The mass of a nucleus is always less than the sum of the masses of
132. Select True or False: A plot of the number of neutrons versus the number of protons in
various isotopes produces a “belt of stability.” Isotopes below the belt of stability (i.e., with a
smaller neutron-to-proton ratio) decay by beta particle emission.
133. Select True or False: The rates of radioactive decay processes, like the rates of chemical
Chapter 19 – Nuclear Chemistry
134. Select True or False: Naturally occurring uranium contains approximately 1% U-235 and
99% U-238. Of these, the isotope that undergoes fission in a nuclear reactor is U-238.