Nuclear Chemistry Review

The half-life of a radioisotope is the time it takes for half of the radioisotope to decay

• True
• False

Tags

NGSS.HS-PS1-8

In alpha decay, the daughter nucleus has a mass that stays the same & the atomic #   increases by one.   

• True 
• False

In beta decay, a proton is converted into a proton & an electron; the electron is  emitted from the nucleus as a beta particle.

• True
• False

Helium nuclei represent alpha particles because an alpha particle has 2 protons & 2    neutrons (mass number = 4).   

• True
• False

In beta decay, the daughter nucleus has a mass that decreases by four & the atomic    # decreases by two. 

• True
• False

Fusion reactions occur in our sun & other stars; fission reactions occur in nuclear   power plants (controlled reaction) & atomic weapons/bombs (uncontrolled reaction).

• True
• False

Takes two small nuclei and combines them into a larger nucleus

• fission
• fusion

The splitting of a nucleus into smaller nuclei is

• fusion
• fission
• half-life
• gamma radiation

How do nuclear power-plants work?

• Fusion
• Half-life
• Fission
• Fusion or fission

Which type of radioactive decay is occurring in this equation? 

• Alpha decay
• beta decay
• gamma decay
• positron emission

Tags

NGSS.HS-PS1-8