6.4.2.2 Nuclear equations (9X2)

What are the two main types of nuclear decay that can be represented in a nuclear?

• Alpha and Beta

• Beta and Gamma

• Alpha and Gamma

• 1. Delta and Epsilon

2. In nuclear decay, what is ejected from the nucleus?

• 2. a) Protons

• 2. b) Neutrons

• 2. c) Particles such as alpha or beta particles

• 2. d) Electrons

3. Which of the following statements best explains the purpose of nuclear decay?

• 3. a) It's a process to increase the energy of the nucleus.

• 3. b) It's a process to make the nucleus unstable.

• 3. c) It's a process to make the nucleus more stable.

• 3. d) It's a process to change the element into another one.

4. What does an alpha particle consist of?

• 4. a) 2 protons and 2 electrons

• 4. b) 2 protons and 2 neutrons

• 4. c) 2 protons, 2 neutrons, and 2 electrons

• 4. d) 2 neutrons and 2 electrons

4. What happens to the atomic number of a nucleus when it undergoes alpha decay? .

• 4. a) It increases by 2

• 4. b) It decreases by 2

• 4. c) It remains the same

• 4. d) It increases by 4

6. What happens to the atomic number of a nucleus when it undergoes beta decay?

• 6. a) It increases by 1

• 6. b) It decreases by 1

• 6. c) It remains the same

• 6. d) It increases by 2

7. Which particle is released during beta decay?

• 7. a) Alpha particle

• 7. b) Proton

• 7. c) Neutron

• 7. d) Electron

8. When thorium-230 undergoes alpha decay, what does it become?

• 8. a) Radium-226

• 8. b) Radon-222

• 8. c) Uranium-226

• 8. d) Thorium-226

9. If a radioactive isotope undergoes beta decay and changes from carbon-14 to nitrogen-14, what is ejected from the nucleus?

• 9. a) Alpha particle

• 9. b) Beta particle

• 9. c) Gamma radiation

• 9. d) Neutron

10. Complete the following decay equation: Polonium-214 (atomic number 84) → Lead-210 (atomic number 82) + ________

 

• 10. a) Alpha particle

• 10. b) Beta particle

• 10. c) Gamma radiation

• 10. d) Neutron