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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 are released from the nucleus during radioactive decay
B
the particles that can penetrate any thickness of matter
C
the particles that have electrons
D
the particles that have unstable protons
2) What is a half-life
A
half of a gamma particle
B
half of a radioactive substance
C
half of a beta particle
D
the TIME it takes for half of a sample of a radioactive substance to decay
3) During Alpha Particle Radiation what particles are emitted
A
Two Electrons
B
Two Neutrons
C
Two protons and two neutrons
D
One proton and one neutron
4) What types of radiation ionize
A
Alpha and Gamma
B
Alpha, Beta and neutron emission
C
Alpha, Beta and Gamma
D
Beta and Gamma
5) The process of splitting a nucleus into two or more fragments and energy is released
A
Fusion
B
Neutron emission
C
Mass energy
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
Beta Particle Radiation
D
Neutron Emission
7) When a neutron is emitted from an atom the process is called
A
Gamma Radiation
B
Neutron Emission
C
Beta Particle Radiation
D
Alpha Particle Radiation
8) When atoms are combined to form heavier atoms
A
Fusion
B
Neutron Emission
C
Mass Energy
D
Fission
9) Beta Particle Radiation
A
A neutron becomes a proton when emitted
B
Two protons and two neutrons are emitted
C
Two protons are emitted
D
Two neutrons are emitted
10) This type of radiation is a helium atom with electrons
A
Gamma Radiation
B
Alpha Particle Radiation
C
Neutron Emission
D
Beta Particle Radiation
*select an answer for all questions
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