Title: Chapter 21: Nuclear Chemistry
Course: Test

Q: Which of the following is emitted by radioactive nuclei and contains two protons and two neutrons?
- alpha particles
- beta particles
- gamma rays
A: alpha particles

Q: Which of the following is emitted by radioactive nuclei and is a type of high energy radiation that does not contain mass or charge?
- alpha particles
- beta particles
- gamma rays
A: gamma rays

Q: Which of the following is emitted by radioactive nuclei and has a mass and charge that is identical to an electron?
- alpha particles
- beta particles
- gamma rays
A: beta particles

Q: Gamma Ray Emission is represented by which symbol?
- β
- α
- γ
A: γ

Q: Beta particle emission is represented by which symbol?
- β
- α
- γ
A: β

Q: Alpha particle emission is represented by which symbol?
- β
- α
- γ
A: α

Q: Which of the following sources of radiation is higher in energy?
- visible light
- ultra violet light
- infrared light
A: ultra violet light

Q: Which of the following sources of radiation has a longer wavelength?
- visible light
- infrared light
- ultra violet light
A: infrared light

Q: Which is an example of nonionizing radiation?
- radiowaves
- x-rays
- cosmic rays
A: radiowaves

Q: Which is an example of ionizing radiation?
- radiowaves
- infrared light
- cosmic rays
A: cosmic rays

Q: Which is an example of ionizing radiation?
- ultra violet light
- visible light
- infrared light
A: ultra violet light

Q: What is nonionizing radiation?
- radiation that does not have a sufficient amount of energy to remove an electron from an atom or molecule
- radiation that has sufficient amount of energy to remove an electron from an atom or molecule
- radiation that does not have a sufficient amount of energy to gain an electron from an atom or molecule
A: radiation that does not have a sufficient amount of energy to remove an electron from an atom or molecule

Q: What is ionizing radiation?
- radiation that does not have a sufficient amount of energy to remove an electron from an atom or molecule
- radiation that has sufficient amount of energy to gain an electron from an atom or molecule
- radiation that has sufficient amount of energy to remove an electron from an atom or molecule
A: radiation that has sufficient amount of energy to remove an electron from an atom or molecule

Q: Which type of radiation has sufficient energy to penetrate into organs, tissue, and bone?
- gamma radiation
- alpha radiation
- beta radiation
A: gamma radiation

Q: Which type of radiation has insufficient energy and cannot penetrate the outer layers of human skin?
- gamma radiation
- alpha radiation
- beta radiation
A: alpha radiation

Q: Which is a type of nuclear reaction where two small nuclei are merged together to generate a larger nuclei and a tremendous amount of energy?
- nuclear fission
- nuclear fusion
- neutron scattering
A: nuclear fusion

Q: Which is a type of nuclear reaction where a large nucleus splits into two smaller nuclei with the release of a large amount of energy?
- neutron scattering
- nuclear fusion
- nuclear fission
A: nuclear fission

Q: Through what process does the sun generate its energy?
- nuclear fusion
- nuclear fission
- neutron scattering
A: nuclear fusion

Q: _____ is an instrument used to measure levels of ionizing radiation.
- radio counter
- Geiger counter
- radiation counter
A: Geiger counter

Q: Technetium-99m is commonly used as a medical radioisotope in numerous medical diagnostic procedures yearly. The half-life of technetium-99m is 6.00 hours. After 1 day, a medical sample was found to contain 0.05 grams of technetium-99m. How many grams of technetium-99m were present initially?
- 0.8 g
- 0.2 g
- 0.1 g
A: 0.8 g

Q: Before the use of technetium-99m, patients with high risk coronary artery disease were evaluated using thallium-201 which has a half-life of 73.00 hours. If a person is exposed to 5.000 μg of thallium-201, how many hours would it take to reach 10.00 % of its original mass?
- 3.322 hours
- 242.5 hours
- 21.98 hours
A: 242.5 hours

Q: How much of a 0.230 g radioactive sample with a half-life of 8 hours would remain after a period of 2.50 days?
- 8.98 × 10^-4 g
- 1.80 × 10^-3 g
- 1.27 × 10^-3 g
A: 1.27 × 10^-3 g

Q: What is the half-life of a radioactive sample if 0.892 g would take 3.73 days to decay to 0.114 g?
- 0.331 hours
- 2.96 hours
- 30.1 hours
A: 30.1 hours