"On this day in 1811, Italian scientist
Amedeo Avogadro published his memoir about the molecular content of gases."
Name Lifetime Andre Marie Ampere 1775-1836
Amedeo Avogadro 1776-1856 Claude-Louis Berthollet 1748-1822 Jons Jacob Berzelius 1779-1848 John Dalton 1776-1844 Humphry Davy 1778-1829 Louis Jacques Thenard 1775-1857 Table 3.
Morselli, Mario [1984]:
Amedeo Avogadro, Dordrecht, D.
In 1811
Amedeo Avogadro came up with the hypothesis that all gases at the same volume, pressure, and temperature were made up of the same number of particles; in the process he coined the word molecules to describe the combinations of atoms that made up a gas.