Question

During a ${\beta }^{-}$ decay

• A. An atomic electron is ejected
• B. An electron which is already present within the nucleus is ejected
• C. A neutron in the nucleus decays emitting an electron
• D. A proton in the nucleus decays emitting an electron

Answer 1

Answer: (C)

During ${\beta }^{-}$ decay, a neutron in the nucleus decays emitting an electron.