Question 1

Determine the identity of the daughter nuclide from the alpha decay of 210
84 Po.

Accepted Answer

A)   21486 Rn
B)    82206{ } _ { 82} ^ { 206} 82206​  Pb
C)    21288\begin{array} { c } 212 \88\end{array}21288​  Ra
D)    80208{ } _ { 80 } ^ { 208 } 80208​  Hg
E)   21185 At F) C) and D)
G) A) and B)

Question 2

Which nuclide below is most likely to decay by electron capture?

Accepted Answer

A)    18375\begin{array} { c } 183 \75\end{array}18375​  Re
B)    18575\begin{array} { c } 185 \75\end{array}18575​  Re
C)    18775\begin{array} { r } 187 \75\end{array}18775​  Re
D)   18975 Re E) None of the above
F) A) and C)

Question 3

Determine the identity of the daughter nuclide from the beta decay of 210
82 Pb.

Accepted Answer

A)   20878 Pt
B)    81209{ } _ { 81} ^ { 209} 81209​  Tl
C)    80206{ } _ { 80} ^ { 206} 80206​  Hg
D)   21083 Bi
E)   21182 Pb F) A) and B)
G) A) and C)

Question 4

Stable isotopes with low atomic numbers have an N/Z ratio of 1.What does that imply?

Accepted Answer

A)  The number of neutrons equals the number of protons.
B)  The number of neutrons equals the number of electrons plus protons.
C)  The number of protons equals the number of electrons.
D)  The atomic number equals the atomic mass.
E)  The number of protons equals the number of electrons plus neutrons.F) A) and B)
G) A) and C)

Question 5

Which of the following nuclides is most likely to undergo beta decay?

Accepted Answer

A)    18878\begin{array} { c } 188 \78\end{array}18878​  Pt
B)    19278\begin{array} { c } 192 \78\end{array}19278​  Pt
C)    19678\begin{array} { c } 196 \78\end{array}19678​  Pt
D)    20078\begin{array} { c } 200 \78\end{array}20078​  Pt E) C) and D)
F) None of the above

Question 6

What percentage of a radioactive substance remains after 7.00 half-lives have elapsed?

Accepted Answer

A)  0.391%
B)  0.78%
C)  1.56%
D)  3.12%E) A) and B)
F) None of the above

Question 7

What is the mass defect?

Accepted Answer

The mass of a nucleus is less than the s...

Question 8

Identify the missing particle in the following nuclear equation: 
238
92 U ? ? + 4
2 He + 2  00\begin{array} { l } 0 \0\end{array}00​  g

Accepted Answer

A)   23890 Th
B)    23288\begin{array} { c } 232 \88\end{array}23288​  Ra
C)   24294 Pu
D)   23490 Th
E)    24288\begin{array} { c } 242 \88\end{array}24288​  Ra F) C) and D)
G) B) and D)

Exam 19: Radioactivity and Nuclear Chemistry

Identify the missing particle in the following nuclear equation: 238 92 U ? ? + 4 2 He + 2 $\begin{array} { l } 0 \\0\end{array}$ g

Correct Answer
verified

What percentage of a radioactive substance remains after 7.00 half-lives have elapsed?

Correct Answer
verified

Which of the following nuclides is most likely to undergo beta decay?

Correct Answer
verified

What is the mass defect?

Correct Answer
verified
The mass of a nucleus is less than the s...
View Answer

Determine the identity of the daughter nuclide from the alpha decay of 210 84 Po.

Correct Answer
verified

Determine the identity of the daughter nuclide from the beta decay of 210 82 Pb.

Correct Answer
verified

Stable isotopes with low atomic numbers have an N/Z ratio of 1.What does that imply?

Correct Answer
verified

Which nuclide below is most likely to decay by electron capture?

Correct Answer
verified

Exam 19: Radioactivity and Nuclear Chemistry

Identify the missing particle in the following nuclear equation: 238 92 U ? ? + 4 2 He + 2 00\begin{array} { l } 0 \\0\end{array}00​ g

Correct AnswerverifiedShow Answer

What percentage of a radioactive substance remains after 7.00 half-lives have elapsed?

Correct AnswerverifiedShow Answer

Which of the following nuclides is most likely to undergo beta decay?

Correct AnswerverifiedShow Answer

What is the mass defect?

Correct AnswerverifiedThe mass of a nucleus is less than the s...View AnswerShow Answer

Determine the identity of the daughter nuclide from the alpha decay of 210 84 Po.

Correct AnswerverifiedShow Answer

Determine the identity of the daughter nuclide from the beta decay of 210 82 Pb.

Correct AnswerverifiedShow Answer

Stable isotopes with low atomic numbers have an N/Z ratio of 1.What does that imply?

Correct AnswerverifiedShow Answer

Which nuclide below is most likely to decay by electron capture?

Correct AnswerverifiedShow Answer

Identify the missing particle in the following nuclear equation: 238 92 U ? ? + 4 2 He + 2 $\begin{array} { l } 0 \\0\end{array}$ g

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
The mass of a nucleus is less than the s...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified