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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 have unstable protons
C
the particles that can penetrate any thickness of matter
D
the particles that have electrons
2) What is a half-life
A
half of a gamma particle
B
half of a beta particle
C
half of a radioactive substance
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 protons and two neutrons
C
Two Neutrons
D
One proton and one neutron
4) What types of radiation ionize
A
Alpha and Gamma
B
Beta and Gamma
C
Alpha, Beta 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
Fusion
B
Neutron emission
C
Fission
D
Mass energy
6) During this type of radiation process the atomic number and mass are not changed
A
Neutron Emission
B
Alpha Particle Radiation
C
Gamma Radiation
D
Beta Particle Radiation
7) When a neutron is emitted from an atom the process is called
A
Neutron Emission
B
Alpha Particle Radiation
C
Gamma Radiation
D
Beta Particle Radiation
8) When atoms are combined to form heavier atoms
A
Mass Energy
B
Fusion
C
Neutron Emission
D
Fission
9) Beta Particle Radiation
A
Two neutrons are emitted
B
Two protons are emitted
C
Two protons and two neutrons are emitted
D
A neutron becomes a proton when 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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