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An alpha particle captures an electron. What does it change to? What happens when it captures two electrons?
- aditya balaram (age 15)
An alpha particle is a stable bound state of two protons and two neutrons, the same thing as a doubly ionized helium atom. If it it captures one electron it becomes a singly ionized helium atom. If it should capture yet another electron it would become a common ordinary neutral helium atom.
(published on 11/19/07)
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