John Dalton
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John Dalton was an English chemist, physicist, and meteorologist whose work laid the foundations of modern atomic theory and stoichiometric chemistry. Building on earlier ideas about the indivisibilit
1835 portrait
Dalton John profile
Historical plaque marking Dalton's birthplace
Modern plaque marking Dalton's birthplace
Dalton (unit)
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The dalton, or unified atomic mass unit, is a unit of mass defined as 1/12 of the mass of an unbound neutral atom of carbon-12 in its nuclear and electronic ground state and at rest. The word "unified
John Dalton
…academic journal for inorganic chemistry is called Dalton Transactions. In honour of Dalton's work, many chemists and biochemists use the unit of mass dalton (symbol Da), also known as the unified atomic mass unit, equal to 1/12 of the mass of a neutral atom of carbon-12). Quaker schools have named buildings…
Jean Perrin in 1926
Josef Loschmidt