dalton

• Nom propre désignant une unité de masse utilisée pour exprimer les poids atomiques et moléculaires, égale à un douzième de la masse d'un atome de carbone-12.

A proper noun referring to a unit of mass used to express atomic and molecular weights, equivalent to one twelfth of the mass of an atom of carbon-12.

indénombrable · nom propre

1. John Dalton (1766-1844)B2formal

   English chemist and physicist who formulated the atomic theory and the law of partial pressures, and gave the first description of red-green color blindness.

   John Dalton

   • Dalton's atomic theory revolutionized modern chemistry.
   • The law of partial pressures is named after John Dalton.
   • Dalton was the first to scientifically describe color blindness.