Examples from the Web for avogadro
The molecule of Avogadro has always been a decomposable particle.The Story of Alchemy and the Beginnings of Chemistry|M. M. Pattison Muir
It is to the molecule, considered as the unit of physical structure, that Avogadro's law applies.
And with that the law of Avogadro dropped out of sight for a full generation.
In 1811 Avogadro distinguished between the ultimate particles of compounds and elements.
This deduction from Avogadro's law is now a part and parcel of our general chemical knowledge.