Consistent atomic weights (Cannizzaro, Karlsruhe Congress)
Sistema coherente de pesos atómicos y moleculares (Cannizzaro, Karlsruhe)
- Date
- 1860 · confidence high
- Place
- Karlsruhe, Baden
- Credited to
- Stanislao Cannizzaro
- People
- 👤 Stanislao Cannizzaro1826–1910
- Field
- Matter & energy
What was discovered
At the first international chemistry congress, Cannizzaro shows how Avogadro's hypothesis allows atomic weights to be fixed unambiguously. It unifies notation and gives Mendeleev and Meyer the data for the periodic table.
What it led to
- Periodic table
- Agreed molecular formulae
- International chemistry community
Built on
- Avogadro's law1811
- Berzelius's atomic weights
Made possible
- Periodic law and periodic table1869
- standard atomic weight tables