+Beta decay is a type of [radioactivity](/wiki/radioactivity) where an atomic nucleus transforms, changing a neutron into a proton or vice-versa. This process emits an [electron](/wiki/electron) (or positron) and an antineutrino (or neutrino), thus altering the element's identity.
+## See also
+- [Radioactivity](/wiki/radioactivity)
+- [Neutrino](/wiki/neutrino)
+- [Proton](/wiki/proton)
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