Carbon-14 has an activity of 0.25 Bq per gram of carbon for living organisms. The half-life of 14C is 5730 years. If a sample of charcoal from an archeological dig yields a 14C activity of 0.15 Bq per gram of carbon, how old is the material?

A) 6.6 × 103 y B) 5.1 × 103 y C) 4.2 × 103 y D) 1.7 × 103 y E) 1.4 × 103 y A) 6.6 × 103 y B) 5.1 × 103 y C) 4.2 × 103 y D) 1.7 × 103 y E) 1.4 × 103 y

A neutron star has approximately the same density as nuclear material. If a neutron star has the same mass as the Sun, 1.99 × 1030 kg, what would be its radius? Use the relationship r = (1.2 fm) A1/3 together with the mass of a neutron, 1.67 × 10−27kg, to estimate the answer.

A) 12 km B) 19 km C) 13 km D) 9.8 km A) 12 km B) 19 km C) 13 km D) 9.8 km

The half-life of 30P is 2.50 minutes. If a sample of 30P has 1.60 × 1010 nuclei present initially, how many remain after 10.0 minutes?

A) 0.800 × 1010 B) 0.400 × 1010 C) 0.200 × 1010 D) 0.100 × 1010 E) 0.050 × 1010 A) 0.800 × 1010 B) 0.400 × 1010 C) 0.200 × 1010 D) 0.100 × 1010 E) 0.050 × 1010

The isotope A281 decays by beta-minus decay. What is the daughter nucleus?

A) Mg28 B) A271 C) Na24 D) Si28 E) Si27 A) Mg28 B) A271 C) Na24 D) Si28 E) Si27

One pg (picogram) of 40K has how many nuclei?

A) 6.0 × 1017 B) 6.0 × 1011 C) 1.5 × 1022 D) 3.0 × 1011 E) 1.5 × 1010 A) 6.0 × 1017 B) 6.0 × 1011 C) 1.5 × 1022 D) 3.0 × 1011 E) 1.5 × 1010

What is the binding energy of 12C? The mass of an atom of 12C is 12 u (exactly), the mass of an atom of 1H is 1.007825 u, and the mass of a neutron is 1.0086649 u.

A) 137 MeV B) 104 MeV C) 92.2 MeV D) 46.1 MeV E) 7.68 MeV A) 137 MeV B) 104 MeV C) 92.2 MeV D) 46.1 MeV E) 7.68 MeV

Exam 29: Nuclear Physics

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Carbon-14 has an activity of 0.25 Bq per gram of carbon for living organisms. The half-life of ¹⁴C is 5730 years. If a sample of charcoal from an archeological dig yields a ¹⁴C activity of 0.15 Bq per gram of carbon, how old is the material?

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Question 41

A neutron star has approximately the same density as nuclear material. If a neutron star has the same mass as the Sun, 1.99 × 10³⁰kg, what would be its radius? Use the relationship r = (1.2 fm) A^1/3 together with the mass of a neutron, 1.67 × 10⁻²⁷kg, to estimate the answer.

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Question 42

Who discovered radioactivity?

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Question 43

What is the radius of a nuclide with mass number 190?

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Question 44

What is the symbol for the nuclide with 46 protons and 92 neutrons?

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Question 45

In beta-minus decay, which neutrino is emitted?

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Question 46

The symbol is used to represent the

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Question 47

The half-life of ³⁰P is 2.50 minutes. If a sample of ³⁰P has 1.60 × 10¹⁰ nuclei present initially, how many remain after 10.0 minutes?

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Question 48

Carbon-14 has a half-life of 5730 years. You discover a single carbon-14 nucleus in your laboratory. What is the probability that it will decay in the next 24 hours?

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Question 49

The isotope A₂₈1 decays by beta-minus decay. What is the daughter nucleus?

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Question 50

The quantum-mechanical process by which an alpha particle makes it through the potential barrier holding it in the nucleus is called

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Question 51

The binding energy per nucleon in a nucleus is

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Question 52

What is the mass of 25.0 mCi of technetium-99m (Tc_99m), which has a half-life of 6.00 h?

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Question 53

In radiation dosage, the factor that accounts for the impact of the type of radiation on the biological damage caused is the

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Question 54

If a nucleus has excited states above the ground state at energies 300 keV, 200 keV, and 80 keV, what gamma rays (in keV) may be expected from a collection of these excited nuclei? The ground-state energy is at 0. Choose the most complete set.

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Question 55

What is the ratio of radii of the nuclides and ?

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Question 56

One pg (picogram) of ⁴⁰K has how many nuclei?

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Question 57

Isotopes of an element have the same number of __ but different numbers of _.

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Question 58

What is the binding energy of ¹²C? The mass of an atom of ¹²C is 12 u (exactly), the mass of an atom of ¹H is 1.007825 u, and the mass of a neutron is 1.0086649 u.

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Question 59

What nuclide has 14 protons and 16 neutrons?

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Question 60

Showing 41 - 60 of 77

Exam 29: Nuclear Physics

Carbon-14 has an activity of 0.25 Bq per gram of carbon for living organisms. The half-life of 14C is 5730 years. If a sample of charcoal from an archeological dig yields a 14C activity of 0.15 Bq per gram of carbon, how old is the material?

A neutron star has approximately the same density as nuclear material. If a neutron star has the same mass as the Sun, 1.99 × 1030 kg, what would be its radius? Use the relationship r = (1.2 fm) A1/3 together with the mass of a neutron, 1.67 × 10−27kg, to estimate the answer.

Who discovered radioactivity?

What is the radius of a nuclide with mass number 190?

What is the symbol for the nuclide with 46 protons and 92 neutrons?

In beta-minus decay, which neutrino is emitted?

The symbol is used to represent the

The half-life of 30P is 2.50 minutes. If a sample of 30P has 1.60 × 1010 nuclei present initially, how many remain after 10.0 minutes?

Carbon-14 has a half-life of 5730 years. You discover a single carbon-14 nucleus in your laboratory. What is the probability that it will decay in the next 24 hours?

The isotope A281 decays by beta-minus decay. What is the daughter nucleus?

The quantum-mechanical process by which an alpha particle makes it through the potential barrier holding it in the nucleus is called

The binding energy per nucleon in a nucleus is

What is the mass of 25.0 mCi of technetium-99m (Tc99m), which has a half-life of 6.00 h?

In radiation dosage, the factor that accounts for the impact of the type of radiation on the biological damage caused is the

If a nucleus has excited states above the ground state at energies 300 keV, 200 keV, and 80 keV, what gamma rays (in keV) may be expected from a collection of these excited nuclei? The ground-state energy is at 0. Choose the most complete set.

What is the ratio of radii of the nuclides and ?

One pg (picogram) of 40K has how many nuclei?

Isotopes of an element have the same number of ________ but different numbers of _______.

What is the binding energy of 12C? The mass of an atom of 12C is 12 u (exactly), the mass of an atom of 1H is 1.007825 u, and the mass of a neutron is 1.0086649 u.

What nuclide has 14 protons and 16 neutrons?

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Carbon-14 has an activity of 0.25 Bq per gram of carbon for living organisms. The half-life of ¹⁴C is 5730 years. If a sample of charcoal from an archeological dig yields a ¹⁴C activity of 0.15 Bq per gram of carbon, how old is the material?

A neutron star has approximately the same density as nuclear material. If a neutron star has the same mass as the Sun, 1.99 × 10³⁰kg, what would be its radius? Use the relationship r = (1.2 fm) A^1/3 together with the mass of a neutron, 1.67 × 10⁻²⁷kg, to estimate the answer.

The half-life of ³⁰P is 2.50 minutes. If a sample of ³⁰P has 1.60 × 10¹⁰ nuclei present initially, how many remain after 10.0 minutes?

The isotope A₂₈1 decays by beta-minus decay. What is the daughter nucleus?

What is the mass of 25.0 mCi of technetium-99m (Tc_99m), which has a half-life of 6.00 h?

One pg (picogram) of ⁴⁰K has how many nuclei?

Isotopes of an element have the same number of __ but different numbers of _.

What is the binding energy of ¹²C? The mass of an atom of ¹²C is 12 u (exactly), the mass of an atom of ¹H is 1.007825 u, and the mass of a neutron is 1.0086649 u.