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Standard IX
Chemistry
Uses of Radioactive Substances
The particles...
Question
The particles not emitted by radioactive substances are:
A
gamma rays
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B
electrons
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C
protons
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D
He nuclei
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Solution
The correct option is
C
protons
∙
gamma rays are emitted in
γ
-decay.
∙
high energy electrons are emitted in
β
-decay.
∙
H
e
nuclei are emitted in
α
-decay.
∙
Protons are not emitted in any of the radioactive decay processes.
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