Determine the activity of 6.0 × 1012 atoms of Rn-220 that has a half-life of 56 s.

A) 2.0 Ci B) 2.5 Ci C) 3.0 Ci D) 3.5 Ci E) 4.0 Ci A) 2.0 Ci B) 2.5 Ci C) 3.0 Ci D) 3.5 Ci E) 4.0 Ci

Exam 31: Nuclear Physics and Radioactivity

Explore all topics

How much energy is required to remove a neutron (m_n = 1.008 665 u) from that has an atomic mass of 15.000 108 u to make that has an atomic mass of 14.003 074 u? Note: The energy equivalent of the atomic mass unit is 931.5 MeV.

Free

(Multiple Choice)

4.8/5

(30)

Question 1

Correct Answer:

Verified

Determine the amount of energy released in the following alpha decay process: The relevant atomic masses are = 234.043 299 u, =230.033 937 u, and = 4.002 603 u.

Free

(Multiple Choice)

4.9/5

(31)

Question 2

Correct Answer:

Verified

The activity of a carbon-14 sample is 0.1 Ci.If this sample is burned, what is the activity of the resulting CO₂?

Free

(Multiple Choice)

4.9/5

(41)

Question 3

Correct Answer:

Verified

How many neutrons are there in the nucleus ?

(Multiple Choice)

4.8/5

(37)

Question 4

Determine the activity of 6.0 × 10¹² atoms of Rn-220 that has a half-life of 56 s.

(Multiple Choice)

4.7/5

(43)

Question 5

This question refers to the figure shown.Which one of the following concepts explains why heavy nuclei do not follow the N = Z line (or trend) in the figure?

(Multiple Choice)

4.9/5

(41)

Question 6

The half-life of a particular isotope of iodine is 8.0 days.How much of a 10.0-g sample of this isotope will remain after 30 days?

(Multiple Choice)

5.0/5

(31)

Question 7

The binding energy of an isotope of chlorine is 298 MeV.What is the mass defect of this chlorine nucleus in atomic mass units?

(Multiple Choice)

4.8/5

(35)

Question 8

Which one of the following statements concerning stable nuclei is true?

(Multiple Choice)

4.9/5

(31)

Question 9

The half-life a particular isotope of barium is 12 s.What is the activity of a 1.0 × 10^-⁶ kg sample of this isotope?

(Multiple Choice)

4.8/5

(29)

Question 10

What is the SI unit for activity?

(Multiple Choice)

4.8/5

(27)

Question 11

An isotope of krypton has a half-life of 3 minutes.A sample of this isotope produces 1000 counts per minute in a Geiger counter.Determine the number of counts per minute produced after 15 minutes.

(Multiple Choice)

4.8/5

(33)

Question 12

Which one of the following statements is true concerning the radioisotope carbon-14 that is used in carbon dating?

(Multiple Choice)

4.7/5

(37)

Question 13

Which of the following is not an assumption involved in the expression: r = (1.2 × 10^-¹⁵ m)A^1/3?

(Multiple Choice)

4.9/5

(31)

Question 14

A sample contains 1000 nuclei of a radioactive isotope of barium.Exactly sixty seconds later, 970 nuclei in the sample have decayed.Determine the half-life of this isotope.

(Multiple Choice)

4.8/5

(31)

Question 15

If the uranium nucleus is at rest before its decay, which one of the following statements is true concerning the final nuclei?

(Multiple Choice)

4.9/5

(29)

Question 16

Which one of the following quantities is not a conserved quantity according to the laws of physics?

(Multiple Choice)

4.8/5

(38)

Question 17

Determine the amount of energy released in this decay.Use the following atomic masses: Conversion factors: 1 u = 931.5 MeV; 1 eV = 1.602 × 10^-¹⁹ J

(Multiple Choice)

4.9/5

(30)

Question 18

The same activity is measured for two different isotope samples.One sample contains 0.0450 kg of (atomic mass = 230.033 937 u, t_1/2 = 20.8 days).The second sample contains an unknown amount of (atomic mass = 231.036 264 u, t_1/2 = 4.3 days).What is the mass of the second sample?

(Multiple Choice)

4.7/5

(46)

Question 19

In a certain $\gamma$ decay process, an excited neon atom emits a $\gamma$ -ray that has an energy of 1.630 MeV.The neon atom in the ground state has a mass of 19.992 435 u.What is the mass of the excited neon atom?

(Multiple Choice)

4.8/5

(37)

Question 20

Showing 1 - 20 of 33

Exam 31: Nuclear Physics and Radioactivity

How much energy is required to remove a neutron (mn = 1.008 665 u) from that has an atomic mass of 15.000 108 u to make that has an atomic mass of 14.003 074 u? Note: The energy equivalent of the atomic mass unit is 931.5 MeV.

Determine the amount of energy released in the following alpha decay process: The relevant atomic masses are = 234.043 299 u, =230.033 937 u, and = 4.002 603 u.

The activity of a carbon-14 sample is 0.1 Ci.If this sample is burned, what is the activity of the resulting CO2?

How many neutrons are there in the nucleus ?

Determine the activity of 6.0 × 1012 atoms of Rn-220 that has a half-life of 56 s.

This question refers to the figure shown.Which one of the following concepts explains why heavy nuclei do not follow the N = Z line (or trend) in the figure?

The half-life of a particular isotope of iodine is 8.0 days.How much of a 10.0-g sample of this isotope will remain after 30 days?

The binding energy of an isotope of chlorine is 298 MeV.What is the mass defect of this chlorine nucleus in atomic mass units?

Which one of the following statements concerning stable nuclei is true?

The half-life a particular isotope of barium is 12 s.What is the activity of a 1.0 × 10-6 kg sample of this isotope?

What is the SI unit for activity?

An isotope of krypton has a half-life of 3 minutes.A sample of this isotope produces 1000 counts per minute in a Geiger counter.Determine the number of counts per minute produced after 15 minutes.

Which one of the following statements is true concerning the radioisotope carbon-14 that is used in carbon dating?

Which of the following is not an assumption involved in the expression: r = (1.2 × 10-15 m)A1/3?

A sample contains 1000 nuclei of a radioactive isotope of barium.Exactly sixty seconds later, 970 nuclei in the sample have decayed.Determine the half-life of this isotope.

If the uranium nucleus is at rest before its decay, which one of the following statements is true concerning the final nuclei?

Which one of the following quantities is not a conserved quantity according to the laws of physics?

Determine the amount of energy released in this decay.Use the following atomic masses: Conversion factors: 1 u = 931.5 MeV; 1 eV = 1.602 × 10-19 J

The same activity is measured for two different isotope samples.One sample contains 0.0450 kg of (atomic mass = 230.033 937 u, t1/2 = 20.8 days).The second sample contains an unknown amount of (atomic mass = 231.036 264 u, t1/2 = 4.3 days).What is the mass of the second sample?

In a certain γ\gammaγ decay process, an excited neon atom emits a γ\gammaγ -ray that has an energy of 1.630 MeV.The neon atom in the ground state has a mass of 19.992 435 u.What is the mass of the excited neon atom?

Introduction and Mathematical Concepts

Kinematics in One Dimension

Kinematics in Two Dimensions

Forces and Newtons Laws of Motion

Dynamics of Uniform Circular Motion

Work and Energy

Impulse and Momentum

Rotational Kinematics

Rotational Dynamics

Simple Harmonic Motion and Elasticity

Fluids

Temperature and Heat

The Transfer of Heat

The Ideal Gas Law and Kinetic Theory

Thermodynamics

Waves and Sound

The Principle of Linear Superposition and Interference Phenomena

Electric Forces and Electric Fields

Electric Potential Energy and the Electric Potential

Electric Circuits

Magnetic Forces and Magnetic Fields

Electromagnetic Induction

Alternating Current Circuits

Electromagnetic Waves

The Reflection of Light: Mirrors

The Refraction of Light: Lenses and Optical Instruments

Interference and the Wave Nature of Light

Special Relativity

Particles and Waves

The Nature of the Atom

Ionizing Radiation, Nuclear Energy, and Elementary Particles

Filters

How much energy is required to remove a neutron (m_n = 1.008 665 u) from that has an atomic mass of 15.000 108 u to make that has an atomic mass of 14.003 074 u? Note: The energy equivalent of the atomic mass unit is 931.5 MeV.

The activity of a carbon-14 sample is 0.1 Ci.If this sample is burned, what is the activity of the resulting CO₂?

Determine the activity of 6.0 × 10¹² atoms of Rn-220 that has a half-life of 56 s.

The half-life a particular isotope of barium is 12 s.What is the activity of a 1.0 × 10^-⁶ kg sample of this isotope?

Which of the following is not an assumption involved in the expression: r = (1.2 × 10^-¹⁵ m)A^1/3?

Determine the amount of energy released in this decay.Use the following atomic masses: Conversion factors: 1 u = 931.5 MeV; 1 eV = 1.602 × 10^-¹⁹ J

The same activity is measured for two different isotope samples.One sample contains 0.0450 kg of (atomic mass = 230.033 937 u, t_1/2 = 20.8 days).The second sample contains an unknown amount of (atomic mass = 231.036 264 u, t_1/2 = 4.3 days).What is the mass of the second sample?

In a certain $\gamma$ decay process, an excited neon atom emits a $\gamma$ -ray that has an energy of 1.630 MeV.The neon atom in the ground state has a mass of 19.992 435 u.What is the mass of the excited neon atom?