What term is used to refer to the vacancy left by the free electron when it departs from its original shell?
A. Proton
B. Hole
C. Neutron
D. Nucleus
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Answer: B
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What term is used to refer to the vacancy left by the free electron when it departs from its original shell?
A. Proton
B. Hole
C. Neutron
D. Nucleus
Answer: B
Share your understanding of this question with the correct explanation.