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15 Cards in this Set
- Front
- Back
Nucleon |
A nuclear particle, that is either a proton or a neutron. |
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Nucleon number |
The number of nucleons in any nucleus. |
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Proton number |
The number of protons in a nucleus. |
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Strong nuclear force |
The force between nucleons that holds the nucleus together. All particles that contain quarks can interact via strong nuclear force. |
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Baryon |
A particle consisting of three quarks. |
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Lepton |
A fundamental particle. For example an electron or a neutrino. |
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Meson |
A short-lived particle comprised of a quark and anti-quark pair. |
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Hadron |
A particle consisting of quarks (i.e. baryons and mesons). |
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Weak interaction |
Interactions involving the weak nuclear force. |
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Activity |
The number of radioactive decays per unit time(measured in Becquerels). |
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Half-life |
The average time taken for the activity of a radioactive source to decrease to one half of its original value. |
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Binding energy |
The energy required to seperate an atom into its component parts. |
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Fusion |
The process of two nuclei joining together and releasing energy from a change in binding energy. |
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Fission |
The process of splitting a large nucleus into two smaller nuclides, often with the emission of several neutrons. This releases energy because of the change in binding energy. |
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Weak nuclear force |
The force that is responsible for beta decay. It occurs between leptons and during hadron decay. |