GBB-F-005896-0000 1845 ca, ITALY : The italian Doctor AMEDEO AVOGADRO (1776 - 1856) Count of Quaregna and Cerreto. Avogadro was an Italian scientist, most noted for his contribution to molecular theory now known as Avogadro's law, which states that equal volumes of gases under the same conditions of temperature and pressure will contain equal numbers of molecules. In tribute to him, the number of elementary entities (atoms, molecules, ions or other particles) in 1 mole of a substance, 6.02214179 (30)1023, is known as the Avogadro constant, one of the seven SI base units and represented by NA Credito fotografico obbligatorio: © ARCHIVIO GBB / Archivi Alinari AVVERTENZA: Autorizzazione obbligatoria per utilizzi non editoriali: rivolgersi ad Archivi Alinari Collezione: © ARCHIVIO GBB / Archivi Alinari Tipo oggetto: immagine digitale Tecniche: P immagine digitale Dati tecnici Dimensione (pixel): 2684 X 3906 Dimensione (cm a 300 dpi): 22 X 33 Dimensione (MB): 2.17 Color space: RGB