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Summary

This document is a study guide covering Dalton's atomic theory and the contributions of various scientists to our understanding of atoms. It includes definitions of isotopes and atomic number. Suitable for secondary school science.

Full Transcript

Dalton\'s atomic theory - - - Scientists Dalton - Dalton\'s Atomic Theory Democritus - Discovered the atom JJ Thompson - Discover the Electrons Millikan - discovered of the minus 1 electron, oil drop experiment Rutherford - Gold foil experiment, discovered proton James Chadwick - Disc...

Dalton\'s atomic theory - - - Scientists Dalton - Dalton\'s Atomic Theory Democritus - Discovered the atom JJ Thompson - Discover the Electrons Millikan - discovered of the minus 1 electron, oil drop experiment Rutherford - Gold foil experiment, discovered proton James Chadwick - Discovered the Neutron Mass number - protons + neutrons Atomic Mass - weight average mass of all isotopes in a element Isotope - Atoms of the same element that has a different number of neutrons Atomic Number - number of protons

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