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

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

Quizplus · Accepted Answer

When radium (A=88) emits an alpha particle, it loses two protons and two neutrons. This means that the resulting nucleus will have an atomic number of 88-2 = 86. Therefore, the correct answer is (A) 86.

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