.
One proton
One electron
Helium particle
One proton and one neutron
Photoelectric Effect
Compton scattering
Pair Production
All as above
Nuclei
Electron
Proton
Neutron
Isotope decay rate
Half-life
Activity
Attenuation
The time it takes for the number of protons to halve
The distance it takes for the number of nuclei to halve
The time it takes for the number of nuclei to halve
None of the above
One electron
Two protons and two neutrons
Electromagnetic radiation
Two protons and 2 electrons
Alpha
Beta
Gamma
X-ray
Straight line upwards
Curve upwards
Curve downwards
Logarithmic
Plutonium and mendelevium
Uranium and curium
Uranium and strontium
Uranium and plutonium
Alpha
Beta
Gamma
None of the above
No mass and no electric charge
No mass and an electric charge of +1
No mass and an electric charge of +2
No mass and an electric charge of -1
An electron combining with a neutron
A neutron being ejected from the nucleus
An electron being ejected from the nucleus
An electron combining with a proton
Z and A are unchanged
Z decreases by 4 and A decreases by 2
Z decreases by 2 and A decreases by 4
Z decreases by 4 and A decreases by 4
K-capture
The conversion of a proton to a neutron
The conversion of a neutron to a proton
The emission of a gamma-ray
Z increases by 1 and A remains the same
Z decreases by 1 and A remains the same
Z remains the same and A decreases by 1
Z remains the same and A increases by 1
A beta-minus particle
An alpha-particle
A beta-plus particle
A proton and two neutrons
1/16
1/8
1/4
1/2
The number of protons in a nucleus
The complement of the Atomic Number
The number of neutrons in a nucleus
The number of protons plus the number of neutrons in a nucleus
The inverse of the Mass Number
The number of protons plus the number of neutrons in a nucleus
The number of protons in a nucleus
The number of neutrons in a nucleus
KeV
MeV
Joules
EV
Two neutrons and one proton
Two protons and one neutron
Two neutrons and two protons
Two neutrons and no protons
A stable nucleus becoming unstable
An electron moving to a lower energy shell
An unstable nucleus becoming stable
An electron moving to a higher energy shell
Avogadro's number
The mass number
The number of electrons
The atomic number
1 billion decays per second
37 thousand, million curies
1 decay per second
1 million decays per second
6 hours
12 hours
18 hours
24 hours
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