Nuclear instability (AQA A-Level Physics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What defines a nuclide?
What defines a nuclide?
Specific proton, neutron nos. & energy state
For stable light nuclei with , what is the neutron-to-proton ratio approximately?
For stable light nuclei with , what is the neutron-to-proton ratio approximately?
(ratio close to 1)
Why do heavier nuclei require more neutrons than protons for stability?
Why do heavier nuclei require more neutrons than protons for stability?
Neutrons add attraction but no repulsion
In alpha decay, how do nucleon number and proton number change?
In alpha decay, how do nucleon number and proton number change?
decreases by 4, decreases by 2
What is distinctive about the kinetic energy of alpha particles from a given isotope?
What is distinctive about the kinetic energy of alpha particles from a given isotope?
All have identical kinetic energy
Which nuclei undergo beta-minus decay?
Which nuclei undergo beta-minus decay?
Neutron-rich nuclei
What nuclear change do beta-plus decay and electron capture both produce?
What nuclear change do beta-plus decay and electron capture both produce?
unchanged, decreases by 1
How do beta particle energy spectra differ from alpha particle energy spectra?
How do beta particle energy spectra differ from alpha particle energy spectra?
Beta: continuous range; Alpha: single value
Where on an vs graph do beta-minus emitters typically lie?
Where on an vs graph do beta-minus emitters typically lie?
Left of the stability region
At what separation does the strong nuclear force between nucleons become negligible?
At what separation does the strong nuclear force between nucleons become negligible?
Around 3 fm