Nuclear Reactions and Decay Concepts

What is nuclear fission?

• Combining nuclei

• Splitting nuclei

• Heating nuclei

• Cooling nuclei

What is the mass number of an alpha particle?

• 4

• 2

• 6

• 8

What type of particle is emitted during gamma decay?

• α particle (4/2 He)

• β particle (0/-1 e)

• γ particle (photon)

• neutron

• 82

• 83

• 81

• 84

What type of radiation is produced by Cobalt-60?

• α

• β, γ

• β

• γ

The isotope ₂₃₈₉₃Np has a half-life of 2.0 days. If 4.0 g of neptunium is produced on Monday, what will be the mass of neptunium remaining on Tuesday of the next week?

• 0.5 g

• 1.0 g

• 2.0 g

• 4.0 g

Which isotope undergoes fission when bombarded with neutrons in the example given?

• 238U

• 235U

• 141Ba

• 92Kr

What is the term for the continual process of repeated fission reactions caused by the release of neutrons from previous reactions?

• Nuclear decay

• Chain reaction

• Radioactive series

• Fusion cycle

What is the mass difference on the right side of the fission equation compared to the left side?

• 0.10 u

• 0.18 u

• 0.186 u

• 0.20 u

What is the energy equivalent of the mass difference in the fission reaction?

• 2.78 x 10^{-10} J

• 2.78 x 10^{-11} J

• 1.73 x 10^{-11} J

• 1.73 x 10^{-10} J