Number of entities

{
  "id": "MLC-T-CHM-008158",
  "term": "Number of entities",
  "field": "Chemistry",
  "definition": "A dimensionless quantity representing the count of specified elementary particles, molecules, ions, or other discrete chemical species. This value is directly proportional to the amount of substance, with Avogadro's constant serving as the proportionality factor. It is a fundamental measure in stoichiometry and chemical calculations.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "ion",
    "molecule"
  ],
  "references": [
    "Green Book, 2nd ed., p. 39 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf)",
    "PAC, 1996, 68, 957. 'Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)' on page 985 (https://doi.org/10.1351/pac199668040957)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/number-of-entities/"
}