Question 1

Who discovered radium?

Accepted Answer

A)  Marie and Pierre Curie 
B)  Ernest Rutherford 
C)  Henri Becquerel 
D)  Niels Bohr 
A)  Marie and Pierre Curie 
B)  Ernest Rutherford 
C)  Henri Becquerel 
D)  Niels Bohr

Question 2

No radionuclides decay by emitting

Accepted Answer

A)  protons. 
B)  alpha particles. 
C)  electrons. 
D)  gamma rays. 
A)  protons. 
B)  alpha particles. 
C)  electrons. 
D)  gamma rays.

Question 3

The symbol notation now used for elements was developed by

Accepted Answer

A)  Dalton. 
B)  Berzelius. 
C)  Rutherford. 
D)  Bohr. 
A)  Dalton. 
B)  Berzelius. 
C)  Rutherford. 
D)  Bohr.

Question 4

Which of the following is a transuranium element?

Accepted Answer

A)  Tc 
B)  Pu 
C)  Tm 
D)  Pm 
A)  Tc 
B)  Pu 
C)  Tm 
D)  Pm

Question 5

The various isotopes of an element all have

Accepted Answer

A)  the same number of protons but different numbers of neutrons. 
B)  the same total number of neutrons and protons. 
C)  the same number of neutrons but different numbers of protons. 
D)  the same number of neutrons and the same number of protons. 
A)  the same number of protons but different numbers of neutrons. 
B)  the same total number of neutrons and protons. 
C)  the same number of neutrons but different numbers of protons. 
D)  the same number of neutrons and the same number of protons.

Question 6

Which of the following instruments detects and measures radioactivity?

Accepted Answer

A)  Geiger counter 
B)  Cyclotron 
C)  Tokamak 
D)  Mass spectrometer 
A)  Geiger counter 
B)  Cyclotron 
C)  Tokamak 
D)  Mass spectrometer

Question 7

Determine the atomic mass of a hypothetical element that occurs on Earth as a mixture of 20.00% 32X (atomic mass of isotope = 32.00 u) and 80.00% 34X (atomic mass of isotope = 34.00 u).

Accepted Answer

Question 8

Who discovered the electron in 1897?

Accepted Answer

A)  Ernest Rutherford 
B)  James Chadwick 
C)  J. J. Thomson 
D)  Niels Bohr 
A)  Ernest Rutherford 
B)  James Chadwick 
C)  J. J. Thomson 
D)  Niels Bohr

Question 9

Which type of atom is the standard on which the atomic mass scale is based?

Accepted Answer

A)  12C 
B)  16O 
C)  1H 
D)  56Fe 
A)  12C 
B)  16O 
C)  1H 
D)  56Fe

Question 10

The number of neutrons in an atom of    
is ______________.

Accepted Answer

Question 11

The half-life of 20F is 11 s. What fraction of a sample of 20F will remain after 44 s have elapsed?

Accepted Answer

A)  1/4 
B)  1/16 
C)  1/8 
D)  None of these 
A)  1/4 
B)  1/16 
C)  1/8 
D)  None of these

Question 12

The number of nucleons in a nucleus is the same as the number of neutrons plus the number of _______________.

Accepted Answer

The answer of The number of nucleons in a nucleus...

Question 13

The time it takes for one-half of a sample of a radionuclide to decay is called its ______________.

Accepted Answer

The answer of The time it takes for one-half of...

Question 14

Complete the equation:    
______________

Accepted Answer

Question 15

The number of neutrons available to cause fission in a nuclear reactor is adjusted by inserting or withdrawing the ______________.

Accepted Answer

The answer of The number of neutrons available to cause...

Question 16

Who discovered the atomic nucleus in 1911?

Accepted Answer

A)  Marie and Pierre Curie 
B)  Henri Becquerel 
C)  Ernest Rutherford 
D)  Niels Bohr 
A)  Marie and Pierre Curie 
B)  Henri Becquerel 
C)  Ernest Rutherford 
D)  Niels Bohr

Question 17

When   undergoes beta decay, the daughter is

Accepted Answer

A)    . 
B)    . 
C)    . 
D)  none of these. 
A)    . 
B)    . 
C)    . 
D)  none of these.

Question 18

Which of the following nuclides would be radioactive?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 19

When an unstable Cf nucleus undergoes beta decay, the nucleus formed is that of

Accepted Answer

A)  Cf. 
B)  Fm. 
C)  Bk. 
D)  Cm. 
E)  Es. 
A)  Cf. 
B)  Fm. 
C)  Bk. 
D)  Cm. 
E)  Es.

Question 20

The process of obtaining energy by splitting a large nucleus is called

Accepted Answer

A)  nucleogenesis. 
B)  fusion. 
C)  bombardment. 
D)  fission. 
A)  nucleogenesis. 
B)  fusion. 
C)  bombardment. 
D)  fission.

Who discovered radium?

No radionuclides decay by emitting

The symbol notation now used for elements was developed by

Which of the following is a transuranium element?

The various isotopes of an element all have

Which of the following instruments detects and measures radioactivity?

Determine the atomic mass of a hypothetical element that occurs on Earth as a mixture of 20.00% ³²X (atomic mass of isotope = 32.00 u) and 80.00% ³⁴X (atomic mass of isotope = 34.00 u).

Who discovered the electron in 1897?

Which type of atom is the standard on which the atomic mass scale is based?

The number of neutrons in an atom of is ______________.

The half-life of ²⁰F is 11 s. What fraction of a sample of ²⁰F will remain after 44 s have elapsed?

The number of nucleons in a nucleus is the same as the number of neutrons plus the number of _______________.

The time it takes for one-half of a sample of a radionuclide to decay is called its ______________.

Complete the equation: ______________

The number of neutrons available to cause fission in a nuclear reactor is adjusted by inserting or withdrawing the ______________.

Who discovered the atomic nucleus in 1911?

When undergoes beta decay, the daughter is

Which of the following nuclides would be radioactive?

When an unstable Cf nucleus undergoes beta decay, the nucleus formed is that of

The process of obtaining energy by splitting a large nucleus is called

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Optics and Wave Effects

Electricity and Magnetism

Atomic Physics

Nuclear Physics

The Chemical Elements

Chemical Bonding

Chemical Reactions

Place and Time

The Solar System

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The Universe

The Atmosphere

Atmospheric Effects

Structural Geology and Plate Tectonics

Minerals Rocks and Volcanoes

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Geologic Time

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Exam 10: Organic Chemistry

Who discovered radium?

No radionuclides decay by emitting

The symbol notation now used for elements was developed by

Which of the following is a transuranium element?

The various isotopes of an element all have

Which of the following instruments detects and measures radioactivity?

Determine the atomic mass of a hypothetical element that occurs on Earth as a mixture of 20.00% 32X (atomic mass of isotope = 32.00 u) and 80.00% 34X (atomic mass of isotope = 34.00 u).

Who discovered the electron in 1897?

Which type of atom is the standard on which the atomic mass scale is based?

The number of neutrons in an atom of is ______________.

The half-life of 20F is 11 s. What fraction of a sample of 20F will remain after 44 s have elapsed?

The number of nucleons in a nucleus is the same as the number of neutrons plus the number of _______________.

The time it takes for one-half of a sample of a radionuclide to decay is called its ______________.

Complete the equation: ______________

The number of neutrons available to cause fission in a nuclear reactor is adjusted by inserting or withdrawing the ______________.

Who discovered the atomic nucleus in 1911?

When undergoes beta decay, the daughter is

Which of the following nuclides would be radioactive?

When an unstable Cf nucleus undergoes beta decay, the nucleus formed is that of

The process of obtaining energy by splitting a large nucleus is called

Temperature and Heat

Waves and Sound

Optics and Wave Effects

Electricity and Magnetism

Atomic Physics

Nuclear Physics

The Chemical Elements

Chemical Bonding

Chemical Reactions

Place and Time

The Solar System

Moons and Small Solar System Bodies

The Universe

The Atmosphere

Atmospheric Effects

Structural Geology and Plate Tectonics

Minerals Rocks and Volcanoes

Surface Processes

Geologic Time

Filters

Determine the atomic mass of a hypothetical element that occurs on Earth as a mixture of 20.00% ³²X (atomic mass of isotope = 32.00 u) and 80.00% ³⁴X (atomic mass of isotope = 34.00 u).

The half-life of ²⁰F is 11 s. What fraction of a sample of ²⁰F will remain after 44 s have elapsed?