1
Q
What is a nuclide?
A
The nucleus of a particular isotope
2
Q
What happens in alpha-emission?
A
The mass number decreases by 4, and the atomic number decreases by 2
3
Q
What happens in beta-emission?
A
The mass number is unchanged, but the atomic number increases by 1
4
Q
Why does the atomic number increase?
A
Because a neutron becomes a proton and beta-particle
5
Q
What else must be emitted in beta-decay?
A
An electron antineutrino
6
Q
Why?
A
To preserve lepton number
7
Q
What happens during beta-plus emission?
A
The atomic number decreases by 1
8
Q
What two things are emitted during beta-plus emission?
A
A positron and electron neutrino
Physics - Topic 26 - Nuclear Decay
flashcards
Decks in class (10)
# Cards
-
26.1 - Discovery of Radioactivity3
-
26.2 - Background Radiation5
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26.3 - Dangers of Radiation5
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26.4 - Alpha, Beta and Gamma Radiation21
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26.5 - Disintegration Process8
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26.6 - Spontaneous and Random Nature of Radioactive Decay8
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26.7 - Half-Life4
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26.8 - Experiments Involving Radioactivity3
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26.9 - Radioactive Dating3
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26.10 - Nuclear Medicine6
