What is the relationship between an element's atomic mass, Avogadro's number, and moles.

Avogadro's number is a proportion that relates molar mass on an atomic scale to physical mass on a human scale. Avogadro's number is defined as the number of elementary particles (molecules, atoms, compounds, etc.) per mole of a substance. It is equal to 6.022×1023 mol-1 and is expressed as the symbol NA.
amu (atomic mass unit) : the standard unit of measurement of atomic mass. Avogadro's number : the number of units in one mole: 6.022 × 1023, which is the number of atoms in 12 grams of carbon-12. molar mass : the mass of one mole of a substance, measured in grams.