Avogadro constant (NA or L) is the number of elementary entities in one mole of a substance.
It has the value (6.022 045±0.000 031)×1023 mol-1.
Generalic, Eni. "Avogadro constant." Croatian-English Chemistry Dictionary & Glossary. 29 June 2022. KTF-Split. {Date of access}. <https://glossary.periodni.com>.
Glossary
Periodic Table