Lesson Worksheet: Electron Capture Physics
In this worksheet, we will practice solving nuclear equations involving electron capture.
Q1:
Which of the following statements correctly describes electron capture?
- AElectron capture is a process where, in a neutron-rich nucleus, a neutron decays into a proton, releasing a high-energy electron from the nucleus.
- BElectron capture is a process where, in a proton-rich nucleus, a proton decays into a neutron, releasing a high-energy positron from the nucleus.
- CElectron capture is a process where a proton-rich nucleus of an electrically neutral atom absorbs an inner atomic electron, emitting an electron antineutrino.
- DElectron capture is a process where a proton-rich nucleus of an electrically neutral atom absorbs an inner atomic electron, emitting an electron neutrino.
Q2:
The graph shows an isotope of chromium becoming vanadium via electron capture.
What isotope of chromium does the graph show?
- AChromium-53
- BChromium-50
- CChromium-52
- DChromium-49
- EChromium-51
What isotope of vanadium does the graph show?
- AVanadium-51
- BVanadium-52
- CVanadium-49
- DVanadium-50
- EVanadium-53
Q3:
Which of the following types of particles are emitted when an atomic nucleus captures an electron?
- AA positron
- BA proton
- CAn electron
- DAn electron neutrino
- EA neutron
Q4:
When an electron is captured by an atomic nucleus, by how much does the atomic number of the nucleus change?
Q5:
The graph shows an isotope of cobalt becoming a different element via electron capture. What element does this isotope of cobalt become?
- ACopper
- BIron
- CNickel
- DCobalt
- EManganese
Q6:
The following nuclear equation shows how an isotope of argon becomes an isotope of chlorine via electron capture:
What is the value of in the equation?
Q7:
When an electron is captured by an atomic nucleus, by how much does the mass number of the nucleus change?
Q8:
Gallium-67 can become zinc-67 via electron capture. Which of the lines on the graph shows this process?
- Aiv
- Bi
- Cv
- Dii
- Eiii
Q9:
The following nuclear equation shows how an isotope of vanadium becomes an isotope of titanium via electron capture:
What are the values of and in this equation?
- A,
- B,
- C,
- D,
- E,
Q10:
The following nuclear equation shows how an isotope of beryllium becomes an isotope of lithium via electron capture:
What is the value of in the equation?
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