In which type of nuclear reaction do two light nuclei combine to produce a heavier nucleus?

• positron emission

• gamma emission

• fission

• fusion

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Given the equation, which type of nuclear reaction is represented by the equation?

• fission

• fusion

• beta decay

• alpha decay

Tags

NGSS.HS-PS1-8

Which type of change is represented in the diagram?

• fission

• fusion

• deposition

• evaporation

Tags

NGSS.HS-PS1-8

Which balanced equation represents nuclear fusion?

• 
• 
• 
• 

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

NGSS.HS-PS1-8

The ratio of the mass of U-238 to the mass of Pb-206 can be used to

• diagnose thyroid disorders

• diagnose kidney function

• date geological formations

• date once-living things

Tags

NGSS.HS-PS1-8

The three nuclides, U-233, U-235, and U-238, are isotopes of uranium because they have the same number of protons per atom and __.

• the same number of electrons per atom

• the same number of neutrons per atom

• a different number of electrons per atom

• a different number of neutrons per atom

Tags

NGSS.HS-PS1-8

Which radioisotope is used to determine the age of once-living organisms?

• carbon-14

• cobalt-60

• iodine-131

• uranium-238

The use of uranium-238 to determine the age of a geological formation is a beneficial use of __.

• nuclear fusion

• nuclear fission

• radioactive isomers

• radioactive isotopes

Which radioisotope is used in medicine to treat thyroid disorders?

• cobalt-60

• iodine-131

• phosphorus-32

• uranium-238

Tags

NGSS.HS-PS1-8

Which nuclide is a radioisotope used in the study of organic reaction mechanisms?

• carbon-12

• carbon-14

• uranium-235

• uranium-238