A nucleus ^22688 Ra emits an alpha particle. The daughter nucleus has nucleon number A and proton number Z:

  1. A = 226, Z = 88
  2. A = 226, Z = 84
  3. A = 224, Z = 87
  4. A = 222, Z = 86
Answer

D) A = 222, Z = 86

Nucleon number and charge are conserved: daughter ^22286X. SLO P-11-F-07 · Knowledge

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