Nuclear Chemistry Major Quiz 2

What is the best description of what occurs in a fission reaction?

• energy is absorbed, & more stable elements are formed
• light nuclei form into heavier nuclei
• energy is released, and less stable elements are formed
• heavy nuclei split into lighter nuclei

What change takes place in a nuclear fusion reaction?

• matter is converted to energy
• energy is converted to matter
• ionic bonds are converted to covalent bonds
• Covalent bonds are converted to ionic bonds

Which property best describes what makes atoms useful for nuclear medicine and power generation?

• Isotopes differ in the number of neutrons. Some isotopes are stable, and these are used in nuclear medicine and the generation of power.

• Isotopes differ in the number of electrons. Some isotopes are unstable, and these are used in nuclear medicine and the generation of power.

• Isotopes differ in the number of electrons. Some isotopes are stable, and these are used in nuclear medicine and the generation of power.

• Isotopes differ in the number of neutrons. Some isotopes are unstable, and these are used in nuclear medicine and the generation of power.

What is an advantage of nuclear-fission reactor?

• A large amount of energy can be produced from a small amount of uranium.
• The power plants are only expensive if they require radiation shielding.
• The nuclear waste generated has a very long half-life.
• The products of fission reactions are often radioactive isotopes.

What is the difference between fission and fusion?

• Fission combines small nuclei, while fusion combines large nuclei.
• Fission combines large nuclei, while fusion combines small nuclei.
• Fission splits large nuclei, while fusion combines small nuclei.
• Fission splits large nuclei, while fusion combines large nuclei.

Which is an advantage of using nuclear energy as a power source?

• The products created are safe and reusable.
• The power plants are inexpensive to build and produce large amounts of energy.
• There are additional nutrients provided to plant life from the waste.
• There are large amounts of energy produced from small amounts of uranium.

This reaction quickly grows larger and larger if there is enough fissionable material available.

• Fission
• Fusion
• Chain 
• Decomposition

At times, lost mass is converted into _________, during fission reactions.

• chain reactions
• energy
• critical mass
• fusion

Tags

NGSS.HS-PS1-8

Nuclear reactions involve the particles in the ____.

• electron cloud
• neutrons
• nucleus
• half-life

Tags

NGSS.HS-PS1-8

A form of radiation that carries energy and has no mass and no charge.

• Alpha particles
• Beta Particles
• Gamma Rays
• Daughter nucleus

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4