Stoichiometric number

{
  "id": "MLC-T-CHM-011432",
  "term": "Stoichiometric number",
  "field": "Chemistry",
  "definition": "The coefficient of a species in a balanced stoichiometric equation, written with a negative sign for each reactant and a positive sign for each product and symbolised by the Greek letter nu. For one A reacting with two B to give three Y, the stoichiometric numbers are minus one for A, minus two for B and plus three for Y. They tie the change in the amount of each species to the extent of reaction.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "stoichiometric",
    "stoichiometry"
  ],
  "references": [
    "Green Book, 2nd ed., p. 42 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf)",
    "PAC, 1996, 68, 149. 'A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC Recommendations 1996)' on page 187 (https://doi.org/10.1351/pac199668010149)",
    "PAC, 1996, 68, 957. 'Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)' on page 993 (https://doi.org/10.1351/pac199668040957)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/stoichiometric-number/"
}