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What is the mass number of the element produced when an element with mass number A emits a positron? ...

mahi

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What is the mass number of the element produced when an element with mass number A emits a positron? ...

What is the mass number of the element produced when an element with mass number A emits a positron?
a. A __ 2 c. A
b. A __ 1 d. A + 1

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neontoast91

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