Proton rest mass

{
  "id": "MLC-T-CHM-009612",
  "term": "Proton rest mass",
  "field": "Chemistry",
  "definition": "The invariant mass of a proton when it is at rest, representing its intrinsic mass independent of its motion. This fundamental physical constant is a key property of the proton, a subatomic particle found in atomic nuclei. Its accepted value is approximately 1.67262192369 × 10^-27 kilograms.",
  "references": [
    "CODATA Bull. 1986, 63, 1 (https://doi.org/10.6028/jres.092.010)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/proton-rest-mass/"
}