Question
An $\alpha-$particle captures an electron. What does it change to?
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Answer
An $\alpha$ particle has two protons and two neutrons and zero electrons.It is written as $^4_2\text{He}^{2+}.$
So if it captures an electron, the reaction is: $^4_2\text{He}^{2+} + +e^{− }\rightarrow ^4_2\text{He}^{+}$
So if it captures an electron, the reaction is: $^4_2\text{He}^{2+} + +e^{− }\rightarrow ^4_2\text{He}^{+}$
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