Chemistry: Matter and Change

Section 4: Unstable Nuclei and Radioactive Decay

Self Check Quizzes

1
In the figure above, why are beta particles deflected more than alpha particles?

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A)Beta particles are less massive than alpha particles.
B)Beta partlcles have a larger electric charge than alpha particles.
C)Beta particles have more energy than the alpha particles.
D)Beta particles have a negative electric charge.
2
What is the name for the emission of rays and particles by a radioactive material?
A)radiation
B)nuclear reactivity
C)decay
D)radioactive series
3
What is the charge of a gamma ray?
A)1+
B)2+
C)1-
D)0
4
What is the primary factor in determining an atom's stability?
A)neutron to proton ratio
B)proton to electron ratio
C)neutron to electron ratio
D)alpha particle to beta particle ratio
5
What is the charge of an alpha particle?
A)1+
B)2+
C)1-
D)0
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