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Positron

Term · Chemistry · MLC-T-CHM-009295

The antiparticle of the electron, possessing the same mass but an opposite positive electric charge. It is emitted during certain types of radioactive decay, specifically beta-plus decay. When a positron encounters an electron, both particles annihilate, converting their mass into energy in the form of gamma rays.

Table 1. Record
IdentifierMLC-T-CHM-009295
FieldChemistry
SubjectAnalytical Chemistry
ReferencesPAC, 1982, 54, 1533. 'Glossary of terms used in nuclear analytical chemistry (Provisional)' on page 1548 (https://doi.org/10.1351/pac198254081533)
See alsoElectron
Record as JSON
{
  "id": "MLC-T-CHM-009295",
  "term": "Positron",
  "field": "Chemistry",
  "definition": "The antiparticle of the electron, possessing the same mass but an opposite positive electric charge. It is emitted during certain types of radioactive decay, specifically beta-plus decay. When a positron encounters an electron, both particles annihilate, converting their mass into energy in the form of gamma rays.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "electron"
  ],
  "references": [
    "PAC, 1982, 54, 1533. 'Glossary of terms used in nuclear analytical chemistry (Provisional)' on page 1548 (https://doi.org/10.1351/pac198254081533)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/positron/"
}

Record 9,873 of 13,676 in Chemistry terminology (MLC-0109). Request the full dataset.