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nelson chem 1.2

Atomic theory

QuestionAnswer
What was John Dalton Known for Billard ball model of 1808
What was JJ thompson known for Plum pudding model in 1897 and electron
What was Rutherford Known for Nucleus 1909, and proton 1920 nuclear model
What was chadwick known for neutron 1932
what was Bohr Known for Plantery model and energy levels
What were the four models of atom Billard ball, plum pudding, nuclear, Planatery
What was daltons atomic theory 1.2
Define an atom smallest part of an element
Define electron negatively charged particle in an atom or ion
Define Nuetron Neutrally charged particle in atom or ion
Define Proton Positivly charged particle in atom or ion
Define Atomic number The number of protons an atom or ion has
Define Mass number The number of protons and neutrons annd atom or ion has
Atomic mass unit is carbon 1/12
Created by: ulqorieaa
 

 



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