When radium (A = 88) emits an alpha particle, the resulting nucleus has atomic number
A) 88.
B) 92.
C) 86.
D) 90.
E) none of these

Name: When radium (A = 88) emits an alpha particle, the resulting nucleus has atomic number A) 88. B) 92. C) 86. D) 90. E) none of these
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Quizplus · Accepted Answer

When radium (atomic number 88) emits an alpha particle (which consists of 2 protons and 2 neutrons), its atomic number decreases by 2, resulting in a new atomic number of 86.

When Radium (A = 88) Emits an Alpha Particle, the Resulting