IG Phy – Types of Nuclear Emission
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Question 1 of 15
1. Question
1 point(s)A material is radioactive when some or all of the nuclei within it are unstable and release radiation to become stable.
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Question 2 of 15
2. Question
1 point(s)Radioactive emissions are from the electrons of the atoms.
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Question 3 of 15
3. Question
1 point(s)Background radiation comes mainly from radon gas in the air, rocks and buildings, food and cosmic rays.
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Question 4 of 15
4. Question
1 point(s)Cosmic rays are energetic particles coming from outer space.
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Question 5 of 15
5. Question
1 point(s)The count rate of a Geiger-Müller (GM) tube is expressed as the number of particles detected per unit time.
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Question 6 of 15
6. Question
1 point(s)Alpha particles have a relative charge of +2 and are highly ionizing.
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Question 7 of 15
7. Question
1 point(s)Beta particles can be stopped by a sheet of paper.
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Question 8 of 15
8. Question
1 point(s)Gamma rays have no charge and can be stopped by lead or concrete.
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Question 9 of 15
9. Question
1 point(s)Alpha particles are more penetrating than gamma rays.
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Question 10 of 15
10. Question
1 point(s)Alpha particles can be deflected by electric and magnetic fields.
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Question 11 of 15
11. Question
1 point(s)Gamma rays can be deflected by magnetic fields.
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Question 12 of 15
12. Question
1 point(s)Beta particles travel slower than alpha particles but have higher kinetic energy.
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Question 13 of 15
13. Question
1 point(s)Gamma rays cause the most ionization compared to alpha and beta particles.
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Question 14 of 15
14. Question
1 point(s)Alpha particles can ionize a larger number of air molecules than beta particles.
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Question 15 of 15
15. Question
1 point(s)The spontaneous decay of a nucleus is a random event and is not affected by external factors.
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