Periodic Table Database Schema - v0.6.3
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    Enumeration DecayMode

    Spontaneous transformation of an unstable atomic nucleus into a different entity. Notation follows common nuclear physics shorthand for emission processes.

    Index

    Enumeration Members

    ALPHA: "A"

    Helium-4 nucleus emission, reducing atomic number by 2 and mass by 4.

    BETA_MINUS: "B-"

    Electron emission through the conversion of a neutron to a proton.

    BETA_MINUS_ALPHA: "B-A"

    Beta-minus decay resulting in an excited state that emits an alpha particle.

    BETA_MINUS_FIVE_NEUTRON: "B-5N"

    Beta-minus decay followed by the emission of five neutrons.

    BETA_MINUS_FOUR_NEUTRON: "B-4N"

    Beta-minus decay followed by the emission of four neutrons.

    BETA_MINUS_NEUTRON: "B-N"

    Beta-minus decay followed by the emission of one neutron.

    BETA_MINUS_PROTON: "B-P"

    Beta-minus decay followed by the emission of one proton.

    BETA_MINUS_SEVEN_NEUTRON: "B-7N"

    Beta-minus decay followed by the emission of seven neutrons.

    BETA_MINUS_SIX_NEUTRON: "B-6N"

    Beta-minus decay followed by the emission of six neutrons.

    BETA_MINUS_SPONTANEOUS_FISSION: "B-SF"

    Beta-minus decay followed by spontaneous fission of the daughter nucleus.

    BETA_MINUS_THREE_NEUTRON: "B-3N"

    Beta-minus decay followed by the emission of three neutrons.

    BETA_MINUS_TWO_NEUTRON: "B-2N"

    Beta-minus decay followed by the emission of two neutrons.

    BETA_PLUS: "B+"

    Positron emission through the conversion of a proton to a neutron.

    BETA_PLUS_ALPHA: "B+A"

    Beta-plus decay resulting in an excited state that emits an alpha particle.

    BETA_PLUS_PROTON: "B+P"

    Beta-plus decay followed by the emission of one proton.

    BETA_PLUS_TWO_PROTON: "B+2P"

    Positron emission followed by the emission of two protons.

    DOUBLE_BETA_MINUS: "2B-"

    Simultaneous conversion of two neutrons to protons with electron emission.

    DOUBLE_BETA_PLUS: "2B+"

    Simultaneous conversion of two protons to neutrons with positron emission.

    DOUBLE_ELECTRON_CAPTURE: "2EC"

    Capture of two inner-shell electrons by the nucleus.

    DOUBLE_NEUTRON_EMISSION: "2N"

    Spontaneous emission of two neutrons from an unstable nucleus.

    DOUBLE_PROTON_EMISSION: "2P"

    Spontaneous emission of two protons from an unstable nucleus.

    ELECTRON_CAPTURE: "EC"

    Capture of an orbital electron by a proton in the nucleus.

    ELECTRON_CAPTURE_ALPHA: "ECA"

    Electron capture results in an excited state that emits an alpha particle.

    ELECTRON_CAPTURE_BETA_PLUS: "EC+B+"

    Competition between electron capture and positron emission.

    ELECTRON_CAPTURE_PROTON: "ECP"

    Electron capture followed by the emission of one proton.

    ELECTRON_CAPTURE_SPONTANEOUS_FISSION: "ECSF"

    Electron capture followed by spontaneous fission.

    ELECTRON_CAPTURE_TWO_PROTON: "EC2P"

    Electron capture followed by the emission of two protons.

    ISOMERIC_TRANSITION: "IT"

    Transition from an excited nuclear isomorphism to the ground state.

    NEUTRON_EMISSION: "N"

    Release of a single neutron to achieve greater stability.

    PROTON_EMISSION: "P"

    Release of a single proton to achieve greater stability.

    SPONTANEOUS_FISSION: "SF"

    Splitting of a heavy nucleus into two smaller nuclei without external interaction.

    SPONTANEOUS_FISSION_EC_BPLUS: "SF+EC+B+"

    Spontaneous fission accompanied by positron emission or electron capture.