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- 1. Multiple Choice
Which of these symbols can be used to represent alpha decay?
- 2. Multiple Choice
What is the structure of an alpha particle?
a fast-moving electron
an electromagnetic wave
a fast-moving positron
2 protons and 2 neutrons
- 3. Fill in the Blank
An alpha particle has a relative mass of _____.
- 4. Fill in the Blank
An alpha particle has a relative charge of _____.
- 5. Fill in the Blank
Alpha particles are weakly penetrating. They are absorbed by __________.
- 6. Multiple Choice
Alpha particles are strongly ionising because they have a large relative mass.
True
False
- 7. Multiple Choice
Which of these symbols can be used to represent a beta decay?
- 8. Fill in the Blank
A beta-plus particle is a fast-moving __________.
- 9. Multiple Choice
In a beta-minus decay...
a proton changes to a neutron and an electron.
a proton changes to a neutron and a positron.
a neutron changes to a proton and an electron.
a neutron changes to a proton and a positron.
- 10. Multiple Choice
In a beta-plus decay...
a proton changes to a neutron and an electron.
a proton changes to a neutron and a positron.
a neutron changes to a proton and an electron.
a neutron changes to a proton and a positron.
- 11. Fill in the Blank
What is the missing value in the table?
- 12. Fill in the Blank
Beta radiation is moderately penetrating. It is absorbed by __________.
- 13. Multiple Choice
What is the structure of gamma radiation?
a Helium nucleus
a fast-moving positron
an electromagnetic wave
a neutron
- 14. Fill in the Blank
Gamma rays can be absorbed by __________.
- 15. Fill in the Blank
Which type of radiation is the most ionising?
- 16. Fill in the Blank
Which type of radiation is the most penetrating?
- 17. Fill in the Blank
State the relative mass of a gamma ray.
- 18. Fill in the Blank
Which type of radiation has zero charge?
- 19. Multiple Choice
In alpha decay...
The mass number increases by 2
The mass number does not change
The mass number decreases by 2
The mass number increases by 4
The mass number decreases by 4
- 20. Multiple Choice
In alpha decay...
The atomic number increases by 2
The atomic number does not change
The atomic number decreases by 2
The atomic number increases by 4
The atomic number decreases by 4
- 21. Fill in the Blank
In beta-plus decay, the atomic number __________ by 1.
- 22. Fill in the Blank
In beta-minus decay, the atomic number __________ by 1.
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