Chem B Unit 7 Nuclear Processes

During a nuclear reaction, which is the same before and after the change?

• mass

• number of protons

• types of atoms

• number of alpha particles

To change the type of element, which subatomic particle must be changed?

• Proton

• Neutron

• Electron

The type of radioactive decay in which smaller nuclei are combined to become a larger single nucleus.

The changing of one element into another by radioactive decay, nuclear bombardment, or similar elements.

• fusion

• chemical reaction

• transmutation

• fission

The spontaneous emission of radiation in nuclear decay occurs because

• It causes the atom to stay the same

• It causes the atom to become less stable

• it allows the atom to become more stable

Smashing two marshmallows together best represents:

• Fusion

• Fission

• Alpha Decay

• Gamma Decay

The type of radioactive decay in which a larger nuclei is split into smaller nuclei.

Where is the nucleus with the greatest positive charge found in this fusion reaction?

• Left/Reactant Side

• Right/Product Side

• They are the same

True or False: In BOTH chemical and nuclear reactions the elements can change.

• True

• False

In fission, which type of subatomic particle starts the entire reaction?