Radioactivity

1. Negatively charged radioactive emissions are called?

Question 1 of 34

2. Name some of the sources of background radiation?

Question 2 of 34

3. The penetration power of Alpha particles can be stopped by what material?

Question 3 of 34

4. Explain what occurs when Gamma radiation is emitted?

Question 4 of 34

5. Which of the following statement is INCORRECT about Nuclear fusion?

Question 5 of 34

6. Mention the radioactive emission which has the weakest ionizing power

Question 6 of 34

7. State the applications of radioactivity?

Question 7 of 34

8. Explain what occurs when an Alpha particle is emitted?

Question 8 of 34

9. Give the formula of Half-life of a radioactive element?

Question 9 of 34

10. State the Decay Law

Question 10 of 34

11. How are radiations emitted by radioactive elements identified?

Question 11 of 34

12. The uncharged radioactive emissions are called?

Question 12 of 34

13. Alpha particles are heavier than beta particles hence less deflected in a magnetic field compared to beta particles?

Question 13 of 34

14. Mention the precautions of handling radioactive elements

Question 14 of 34

15. Background radiation is the presence of radiation even in the absence of a radioactive source. True or False?

Question 15 of 34

16. Which radioactive emission has the strongest ionizing power?

Question 16 of 34

17. Ionization effect is when alpha, beta or Gamma radiation knock off electrons from air molecules resulting in the formation of positive ions?

Question 17 of 34

18. The sum of protons and neutrons is called the Mass number?

Question 18 of 34

19. Mention the 2 cloud chambers used to detect and observe the effect of the ionization of particles by radiations?

Question 19 of 34

20. The limit of the penetration power of Beta particles is what material?

Question 20 of 34

21. The fusing together of nuclei to form a heavier nucleus is called?

Question 21 of 34

22. Gamma radiations have the highest penetration effect followed by beta particles then alpha particles. True or False?

Question 22 of 34

23. Which of the following statements is CORRECT about radioactive decay?

Question 23 of 34

24. Define radioactivity

Question 24 of 34

25. Give the main difference between X-rays and Gamma rays?

Question 25 of 34

26. Atoms which have the same atomic number but different mass number are called?

Question 26 of 34

27. When a nucleus is bombarded and it splits it is said to have undergone?

Question 27 of 34

28. Gamma rays penetration power is only stopped by what material?

Question 28 of 34

29. Which of the following is not among some of the hazards of radiation?

Question 29 of 34

30. Which of the following does NOT occur when a Beta particle is emitted?

Question 30 of 34

31. The no. of protons in the nucleus is called the Atomic Number. True or False?

Question 31 of 34

32. Positively charged radioactive emissions are called?

Question 32 of 34

33. The time taken for half the number of nuclides initially present in a radioactive sample to decay is called HALF-LIFE. True or False?

Question 33 of 34

34. Which of the following statement is CORRECT about Nuclear Fission?

Question 34 of 34