Definitions for daltonˈdɔl tn
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Dalton, John Dalton(noun)
English chemist and physicist who formulated atomic theory and the law of partial pressures; gave the first description of red-green color blindness (1766-1844)
a unit of mass, approximately 1.66 x 10-24 grams; -- it is approximately equal to the mass of one hydrogen atom, but the exact value differs slightly as used in physics and chemistry. It is used mostly to describe the size of proteins and nucleic acids in biochemistry. Molecular weights are often expressed as dimensionless units, the unit being understood (in chemistry) to be the atomic mass unit with carbon equal to 14. Thus having a
Origin: [from the chemist John Dalton, proponent of the modern atomic theory of matter.]
the atomic mass unit
a former unit of atomic mass equivalent to 1/16 the mass of an oxygen atom; now replaced by the atomic mass unit (or dalton)
Any of several places in the north of England and in Scotland
John Dalton, English chemist.
transferred from the surname.
Origin: dæl “valley” + tun “settlement”.
Dalton is an ab initio quantum chemistry computer program. It is capable of calculating various molecular properties using the Hartree–Fock, MP2, MCSCF and coupled cluster theories. Version 2.0 of DALTON added support for density functional theory calculations. There are many authors, including Trygve Helgaker and Kenneth Ruud.
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