Question 1

In the following reaction, identify X.

Accepted Answer

A)  7 β\betaβ 
B)  3 α\alphaα 
C)  4n
D)   
E)  15p F) D) and E)
G) A) and B)

Question 2

What would the atom ratio of 206Pb to 238U be in a uranium mineral from a rock that is 1.0 × 109 years old? t1/2(238U) = 4.5 × 109 yr.

Accepted Answer

A)  0.14
B)  0.16
C)  0.22
D)  0.86
E)  1.16F) A) and B)
G) C) and D) B

Question 3

Consider the following decay series:  
What type of nuclear process occurs at the transformation labeled II?

Accepted Answer

A)  ( α\alphaα  emission) 
B)  ( β\betaβ  emission) 
C)  positron emission
D)  electron capture
E)  gamma radiation F) C) and D)
G) B) and D)

Question 4

The energy released by the sun is the result of

Accepted Answer

A)  natural radioactivity.
B)  nuclear fusion.
C)  combustion of hydrogen.
D)  photosynthesis.
E)  nuclear fission.F) A) and B)
G) C) and D)

Question 5

In the following reaction, identify X.

Accepted Answer

A)  ( α\alphaα ) 
B)  n
C)  p
D)   () 
E)  ( β\betaβ )  F) B) and E)
G) B) and D)

Question 6

The energy equivalent of a mass defect of - 0.1620 amu is which of the following?

Accepted Answer

A)  - 1.458 x 1016 J
B)  - 2.421 x 10-8 J
C)  - 2.421 x 10-11 J
D)  - 2.421 x 1013 J
E)  - 1.458 x 10-11 JF) All of the above
G) A) and C)

Question 7

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?

Accepted Answer

Question 8

What fraction of radioactive atoms remains in a sample after six half-lives?

Accepted Answer

A)  zero
B)  1/6
C)  1/16
D)  1/32
E)  1/64F) All of the above
G) A) and D)

Question 9

Consider the following decay series:  What type of nuclear process occurs at the transformation labeled II?

Accepted Answer

A)  ( α\alphaα  emission) 
B)  ( β\betaβ  emission) 
C)  positron emission
D)  electron capture
E)  gamma radiation F) B) and D)
G) C) and E) A

Question 10

What type of nuclear process is illustrated below?

Accepted Answer

beta decay...

Question 11

Consider the following decay series:  What is the complete element symbol for the product labeled Y?

Accepted Answer

A)   
B)   
C)   
D)   
E)   F) A) and B)
G) A) and D)

Question 12

The isotope of iodine with mass number 128 undergoes beta decay with a half-life of 25.00 minutes.How long will it take for 93.75% of a sample of pure 128 I to decay?

Accepted Answer

Question 13

A typical radius of an atomic nucleus is about

Accepted Answer

A)  100 µm
B)  5000 mm
C)  100 nm
D)  5 × 10-3 pm
E)  500 pmF) A) and B)
G) A) and E)

Question 14

The heaviest known isotope of hydrogen is called tritium,  .It decays by beta emission, and has a half-life of 12.3 years.What fraction of a tritium sample will remain after 5.20 years?

Accepted Answer

A)  0.0210
B)  0.746
C)  3.41
D)  0.254
E)  0.423F) A) and C)
G) All of the above

Question 15

A balanced nuclear equation representing the beta emission of iodine-131 is which of the following?

Accepted Answer

A)   
B)   
C)   
D)   
E)   F) B) and E)
G) None of the above

Question 16

Balance the equation  .

Accepted Answer

The answer of Balance the equation  ....

Question 17

What fraction of radioactive atoms remains in a sample after five half-lives?

Accepted Answer

A)  zero
B)  1/6
C)  1/16
D)  1/32
E)  1/64F) A) and B)
G) A) and C)

Question 18

The only stable isotope of aluminum is aluminum-27.What type of radioactive decay should be expected from  Al?

Accepted Answer

A)    H
B)    n
C)   
D)   
E)    HeF) A) and B)
G) All of the above

Question 19

Complete and balance the nuclear equation

Accepted Answer

The answer of Complete and balance the nuclear equation ...

Question 20

Find the nuclear binding energy of potassium-40 (atomic mass = 39.9632591 amu) in units of joules per nucleon.[Data: neutron mass = 1.674928 × 10-24 g; proton mass = 1.672623 × 10-24g; electron mass = 9.109387 × 10-28 g; NA = 6.0221367 × 1023 /mol; c = 2.99792458 × 108 m/s]

Accepted Answer

A)  1.37 × 10-12 J/nucleon
B)  5.48 × 10-11 J/nucleon
C)  5.64 × 10-11 J/nucleon
D)  1.41 × 10-12 J/nucleon
E)  2.97 × 10-12 J/nucleonF) B) and C)
G) A) and B)

Exam 19: Nuclear Chemistry

In the following reaction, identify X. $In the following reaction, identify X. A) 7 \beta B) 3 \alpha C) 4n D) E) 15p$

Correct Answer
verified

What would the atom ratio of ²⁰⁶Pb to ²³⁸U be in a uranium mineral from a rock that is 1.0 × 10⁹ years old? t_1/2(²³⁸U) = 4.5 × 10⁹ yr.

Correct Answer
verified
B

Correct Answer
verified

The energy released by the sun is the result of

Correct Answer
verified

In the following reaction, identify X. $In the following reaction, identify X. A) ( \alpha ) B) n C) p D) ( ) E) ( \beta )$

Correct Answer
verified

The energy equivalent of a mass defect of - 0.1620 amu is which of the following?

Correct Answer
verified

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?

Correct Answer
verified

What fraction of radioactive atoms remains in a sample after six half-lives?

Correct Answer
verified

Correct Answer
verified
A

What type of nuclear process is illustrated below?

Correct Answer
verified
beta decay...
View Answer

Consider the following decay series: What is the complete element symbol for the product labeled Y?

Correct Answer
verified

The isotope of iodine with mass number 128 undergoes beta decay with a half-life of 25.00 minutes.How long will it take for 93.75% of a sample of pure ¹²⁸I to decay?

Correct Answer
verified

A typical radius of an atomic nucleus is about

Correct Answer
verified

Correct Answer
verified

A balanced nuclear equation representing the beta emission of iodine-131 is which of the following?

Correct Answer
verified

Balance the equation .

Correct Answer
verified
11ea7cbf_8f44_a6ac_a2ab_f9c90e28d3dd_TB3246_00

What fraction of radioactive atoms remains in a sample after five half-lives?

Correct Answer
verified

The only stable isotope of aluminum is aluminum-27.What type of radioactive decay should be expected from Al?

Correct Answer
verified

Complete and balance the nuclear equation

Correct Answer
verified

Find the nuclear binding energy of potassium-40 (atomic mass = 39.9632591 amu) in units of joules per nucleon.[Data: neutron mass = 1.674928 × 10^-24 g; proton mass = 1.672623 × 10^-24g; electron mass = 9.109387 × 10^-28 g; N_A = 6.0221367 × 10²³ /mol; c = 2.99792458 × 10⁸ m/s]

Correct Answer
verified

Exam 19: Nuclear Chemistry

In the following reaction, identify X.

Correct AnswerverifiedShow Answer

What would the atom ratio of 206Pb to 238U be in a uranium mineral from a rock that is 1.0 × 109 years old? t1/2(238U) = 4.5 × 109 yr.

Correct AnswerverifiedB

Consider the following decay series: What type of nuclear process occurs at the transformation labeled II?

Correct AnswerverifiedShow Answer

The energy released by the sun is the result of

Correct AnswerverifiedShow Answer

In the following reaction, identify X.

Correct AnswerverifiedShow Answer

The energy equivalent of a mass defect of - 0.1620 amu is which of the following?

Correct AnswerverifiedShow Answer

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?

Correct AnswerverifiedShow Answer

What fraction of radioactive atoms remains in a sample after six half-lives?

Correct AnswerverifiedShow Answer

Consider the following decay series: What type of nuclear process occurs at the transformation labeled II?

Correct AnswerverifiedA

What type of nuclear process is illustrated below?

Correct Answerverifiedbeta decay...View AnswerShow Answer

Consider the following decay series: What is the complete element symbol for the product labeled Y?

Correct AnswerverifiedShow Answer

The isotope of iodine with mass number 128 undergoes beta decay with a half-life of 25.00 minutes.How long will it take for 93.75% of a sample of pure 128 I to decay?

Correct AnswerverifiedShow Answer

A typical radius of an atomic nucleus is about

Correct AnswerverifiedShow Answer

The heaviest known isotope of hydrogen is called tritium, .It decays by beta emission, and has a half-life of 12.3 years.What fraction of a tritium sample will remain after 5.20 years?

Correct AnswerverifiedShow Answer

A balanced nuclear equation representing the beta emission of iodine-131 is which of the following?

Correct AnswerverifiedShow Answer

Balance the equation .

Correct Answerverified11ea7cbf_8f44_a6ac_a2ab_f9c90e28d3dd_TB3246_00

What fraction of radioactive atoms remains in a sample after five half-lives?

Correct AnswerverifiedShow Answer

The only stable isotope of aluminum is aluminum-27.What type of radioactive decay should be expected from Al?

Correct AnswerverifiedShow Answer

Complete and balance the nuclear equation

Correct AnswerverifiedShow Answer

Find the nuclear binding energy of potassium-40 (atomic mass = 39.9632591 amu) in units of joules per nucleon.[Data: neutron mass = 1.674928 × 10-24 g; proton mass = 1.672623 × 10-24g; electron mass = 9.109387 × 10-28 g; NA = 6.0221367 × 1023 /mol; c = 2.99792458 × 108 m/s]

Correct AnswerverifiedShow Answer

In the following reaction, identify X. $In the following reaction, identify X. A) 7 \beta B) 3 \alpha C) 4n D) E) 15p$

Correct Answer
verified

What would the atom ratio of ²⁰⁶Pb to ²³⁸U be in a uranium mineral from a rock that is 1.0 × 10⁹ years old? t_1/2(²³⁸U) = 4.5 × 10⁹ yr.

Correct Answer
verified
B

Correct Answer
verified

Correct Answer
verified

In the following reaction, identify X. $In the following reaction, identify X. A) ( \alpha ) B) n C) p D) ( ) E) ( \beta )$

Correct Answer
verified

Correct Answer
verified

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?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A

Correct Answer
verified
beta decay...
View Answer

Correct Answer
verified

The isotope of iodine with mass number 128 undergoes beta decay with a half-life of 25.00 minutes.How long will it take for 93.75% of a sample of pure ¹²⁸I to decay?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
11ea7cbf_8f44_a6ac_a2ab_f9c90e28d3dd_TB3246_00

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Find the nuclear binding energy of potassium-40 (atomic mass = 39.9632591 amu) in units of joules per nucleon.[Data: neutron mass = 1.674928 × 10^-24 g; proton mass = 1.672623 × 10^-24g; electron mass = 9.109387 × 10^-28 g; N_A = 6.0221367 × 10²³ /mol; c = 2.99792458 × 10⁸ m/s]

Correct Answer
verified