THE PRACTICE STUDIO
Go slowly. Ask why. Make it yours.
PRACTICE / Beta decay
Beta decay changes identity without ejecting a nucleon
A nucleus with A = 90 and Z = 38 undergoes one beta-minus decay.
What is the proton number of the daughter nucleus?
Organize the givens & assumptions
- Parent A = 90
- Parent Z = 38
- One β− decay
A neutron converts to a proton, electron and electron antineutrino; no subsequent decay or extra nucleon emission is included.
- A
- B
- C
- D
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