WorksheetsRadioactive Decay
Total questions: 25
Worksheet time: 2hrs 31mins
24094Pu —› ____ + 42He
23692U
24796Cm
24493Np
24295Am
Gamma rays have
no mass
a huge mass
a small mass
an average mass
In the equation, 146C --> 147N + 0-1B, the _______ decay of radioactive carbon-14 results in the creation of a new nitrogen-14 atom.
Gamma
Beta
Alpha
What happens to an atom's mass when it undergoes alpha decay?
increases by 2
decreases by 2
increases by 4
decreases by 4
What happens to an atom's atomic number when it undergoes alpha decay?
decreases by 1
decreases by 2
increases by 1
increases by 2
In beta decay, a(n) ___________ is emitted.
gamma ray
electron
neutron
helium particle
How many total protons and neutrons does an alpha particle (i.e. a helium atom) have?
1
2
4
8
In alpha decay, a ________ particle breaks off of an atom.
hydrogen
helium
carbon
lithium
When an atom undergoes gamma ray radiation, its atomic number...
increases by 1
decreases by 1
decreases by 2
does not change
614C = ___ + -10e
85209At = ___ + 24He
How is the alpha particle written in a nuclear equation?
42He
24He
0-1e
00γ
AZX --> AZ-1Y + 0+1e
alpha decay
beta positive decay
beta negative decay
electron capture
gamma decay
AZX* --> AZX + 00 γ
alpha decay
beta positive decay
beta negative decay
electron capture
gamma decay
When a nucleus undergoes gamma decay, the atomic number of the element....
remains the same
decreases by one.
increases by one.
increases by two.
