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nelson chem 1.2
Atomic theory
Question | Answer |
---|---|
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 |