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When John Dalton date of discovery?
John Dalton discovered the atom in 1803. He didn't really discover the atom. He developed a theory of matter that involved atoms. Atoms were proved to exist later.
When did Marie and Pierre curie discover their atomic theory?
Marie and Pierre Curie did not discover the atom. John Dalton is credited with the discovery of the atom and J.J. Thomson with the discovery of the electron.
Where did john Dalton find the atom?
john dalton didnt find the atom democrites did... john dalton was reading and found the word atomos in a journal and decided he would change the name to atom meaning undivisible.
Who discover the electrons and protons?
Nucleus: ernest Rutherford neutron: James chadwick protons: ernest Rutherford electron: democritus atom: john Dalton
Who came up with the 4-part atomic theory in 1805?
The first person to develop the first model of the atom in 1803 was John Dalton.
When did john Dalton dicover the atom?
in 1803
Who formed the atomic theory model of the atom and was an English schoolteacher?
John Dalton
What did john Dalton discover in science?
Meterorological
For what is John Dalton known?
i think he discover atomic theory.
Who said the mass of an electron is about 12000 that of a hydrogen atom?
its not, its closer to about 1/1800 of a hydrogen atom, the English chemist john Dalton was the first person to discover relative atomic masses and use them properly.
Who discovered atom before John Dalton?
democritus
Who is the scientist discovered the atom?
John Montgomery Dalton
