Watch the video lesson below and answer the questions that follows. (Post your answer into the comment box below this post) NOTE: The correction will be posted soon.
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Radioactivity Video Lesson.
Radioactivity JAMB Past Question Practice
Attempt the Questions below. Post your answer into the comment box, the correction will be posted soon.
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1. In the equation above, the particles X is?
- A. a proton
- B. a neutron
- C. an α – particle
- D. a β – particle
2. Natural radioactivity consists of the emission of
- A. α- particles and β-rays
- B. α- particles and X-rays
- C. α- particles, β – rays and y-rays
- D. γ- rays and X-rays
3. Which of the following statements about radioactivity is true?
(i) Alpha particle is positively charged
(ii) Beta particle is negatively charged
(iii) Gamma ray is neutral
(iv) Beta particle has the same mass as helium atom
(v) Gamma ray is charged.
- A. i, ii, iii, iv only
- B. i, ii, iii only
- C. iv and v only
- D. i, ii and v only
4. Natural radioactivity consists of emission?
- A. α-particles and β-rays
- B. α-particles and X-rays
- C. γ-ray and X-rays
- D. α-particles and β-rays and γ-rays
5. The mass of a proton is approximately equal to that of
- A. an α-particle
- B. a β-Particle
- C. a neutron
- D. an electron
2.C 3.B 4.A