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atomic theory123
Question | Answer |
---|---|
law of definite proportions | a chemical compound always contains the same elements in the same ratio. |
law of conservation of mass | mass cant be created or destroyed |
law of multiple proportions | when 2 elements combine to form two or more compounds, the mass of one element that combines with a given mass of the other is in the ratio of small whole numbers |
rutherfords model | nucleus protons neutrons |
bohrs model | electrons in electron cloud |
volume in atom | in electron cloud |
mass in atom | in nucleus |
what keeps the nucleus together | a strong force |
02 vs 03 | isotopes and multiple proportion |
mass of nuetron is the same as mass of | protons |
electron charge | negative outside nucleus |
proton charge | positive, inside nucleus |
neutron | no charge, inside nucleus |
daltons theory #1 | 1. all matter is composed of atoms |
daltons theory #2 | 2.atoms are of the same element are indentical in their properties |
daltons theory #3 | 3. atoms of different elements differ in properties |
daltons theory #4 | diff. elements combine to form compounds |
daltons theory #5 | chemical reactions, they are combined, seperated, rearranged but never created destroyed or changed |
what did the foil experiment discover | dense nucleus |
what did the ray tube discover | electrons |
frequency of wave lengths in electro magnet radiation | electro magnet spectrum |