The ability to weigh atoms came about by an observation from an Italian chemist named Amadeo Avogadro.

She was an Italian chemist and biologist, the daughter of the well-known revolutionary philosopher Mikhail Bakunin.

May 10 - Stanislao Cannizzaro (born 1826), Italian chemist.

Primo Levi (1919-1987), an Italian Jewish chemist and writer.

Angelo Angeli (20 August 1864 - 31 May 1931) was an Italian chemist.

Icilio Guareschi (24 December 1847 - 20 June 1918) was an Italian chemist.

July 13 - Stanislao Cannizzaro (died 1910), Italian chemist.

So how did the Italian chemist make such an indelible (numerical) mark on the wonderful world of chemistry?

The effect of airborne pollutants on frescoes has been studied in recent years by several Italian chemists working on major restorations.

Exili was an Italian chemist and poisoner in the 17th century.