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Chapter 9
Test Description: Radioactivity
Instructions: Answer all questions to get your test result.
1) What is radiation
A
the particles that have electrons
B
the particles that have unstable protons
C
the particles that can penetrate any thickness of matter
D
the particles that are released from the nucleus during radioactive decay
2) What is a half-life
A
the TIME it takes for half of a sample of a radioactive substance to decay
B
half of a gamma particle
C
half of a beta particle
D
half of a radioactive substance
3) During Alpha Particle Radiation what particles are emitted
A
Two protons and two neutrons
B
Two Neutrons
C
One proton and one neutron
D
Two Electrons
4) What types of radiation ionize
A
Alpha, Beta and Gamma
B
Beta and Gamma
C
Alpha and Gamma
D
Alpha, Beta and neutron emission
5) The process of splitting a nucleus into two or more fragments and energy is released
A
Mass energy
B
Neutron emission
C
Fusion
D
Fission
6) During this type of radiation process the atomic number and mass are not changed
A
Gamma Radiation
B
Alpha Particle Radiation
C
Neutron Emission
D
Beta Particle Radiation
7) When a neutron is emitted from an atom the process is called
A
Beta Particle Radiation
B
Gamma Radiation
C
Alpha Particle Radiation
D
Neutron Emission
8) When atoms are combined to form heavier atoms
A
Fission
B
Neutron Emission
C
Fusion
D
Mass Energy
9) Beta Particle Radiation
A
Two neutrons are emitted
B
A neutron becomes a proton when emitted
C
Two protons are emitted
D
Two protons and two neutrons are emitted
10) This type of radiation is a helium atom with electrons
A
Alpha Particle Radiation
B
Neutron Emission
C
Gamma Radiation
D
Beta Particle Radiation
*select an answer for all questions
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