You will only need to do this once. Electron capture is a process, in which a parent nucleus captures one of its orbital electrons and emits a neutrino. Electron capture is a mode of beta decay in which an electron – commonly from an inner (low-energy) orbital – is ‘captured’ by the atomic nucleus. If you have a user account, you will need to reset your password the next time you login. Some other special features include Beta decay is the loss of an electron from the nucleus of an atom. The first type (here referred to as beta decay) is also called Negatron Emission because a negatively charged beta particle is emitted, whereas the second type (positron emission) emits a positively charged beta particle. Electron capture is rarely an exclusive decay mode and typically occurs alongside beta-plus decay within the radioactive sample. This therefore reduces the atomic number (i.e., the number of protons) by one and increases the number of neutrons by one. Electron capture is rarely an exclusive decay mode and typically occurs alongside beta-plus decay within a radioactive sample. The electron reacts with one of the nuclear protons, forming a neutron and producing a neutrino. In Beta decay, a high-energy electron (called a beta particle) is emitted from a neutron in the nucleus of a radioactive atom. Electron capture 10 —the decay of unstable neutron-rich nuclides—converts a neutron into a proton by capturing an inner-shell − 1 0 e. The last type of beta decay is quite different from the first two. Positron emission or beta plus decay (β + decay) is a subtype of radioactive decay called beta decay, in which a proton inside a radionuclide nucleus is converted into a neutron while releasing a positron and an electron neutrino (ν e). Typically, it occurs in heavy nuclei with a relative abundance of protons or where insufficient decay energy exists for positron emission to occur 3 . Typically, it occurs in heavy nuclei with a relative abundance of protons or where insufficient decay energy exists for positron emission to occur 3 . The daughter nucleus may be in an excited state. Examples of Positron Emission and Electron Capture: Positron Emission: Electron Capture: Characteristics of Positron Emission and Electron Capture: Positron Emission: Positron decay can be considered as the mirror image of beta decay. The following four reactions—alpha-decay, beta-decay, electron capture, and positron emission—are the spontaneous reactions of unstable (i.e., radioactive) nuclides formed by fusion and neutron capture. That neutron may be thought of as a combination of a beta particle (negative charge) with a proton (positive charge). In electron capture, an orbital electron is captured by the nucleus and absorbed in the reaction. In electron capture, a proton “absorbs” an electron and turns into a neutron, with the release of an electron neutrino. 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