# Avogadro's number

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Avogadro's number (also called Avogadro's Constant) = 6.0221415 × 10<sup>23</sup> and is the number of [[Atom|atoms]] ([[Ion|ions]] or [[Molecules|molecules]]) in 1 [[Mole|mole]] of material. | Avogadro's number (also called Avogadro's Constant) = 6.0221415 × 10<sup>23</sup> and is the number of [[Atom|atoms]] ([[Ion|ions]] or [[Molecules|molecules]]) in 1 [[Mole|mole]] of material. | ||

− | The number is derived from the number of [[Atom|atoms]] in | + | The number is derived from the number of [[Atom|atoms]] in 12 g of carbon 12.<sub></sub> |

## Revision as of 12:07, 28 July 2010

Avogadro's number (also called Avogadro's Constant) = 6.0221415 × 10^{23} and is the number of atoms (ions or molecules) in 1 mole of material.

The number is derived from the number of atoms in 12 g of carbon 12._{}