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12 Cards in this Set

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  • Back
John Dalton
hard indivisible shell, identicle, created nor destroyed (law of conservation of matter), # and kind never change in compound (the law of definite proporsion,
JJ Thompson
coined phrase electron, worked with ray tube, cathode end -, anode end +, plum pudding model
John Rutherford
gold foil experiment
Robert A. Millikan
electons have small mass, electons have - charge
Bohr
atoms have diff # of electrons, elements has PELs, ground state, exited state
De Broglie
electrons be considerd waves
Heisenberg
uncertainty priciple
Aubaw principle
electrons are added 1 at a time from the lower PELs to the higher
Paul Exclusion Principle
orbitals can only hold 2 electrons and they spin in diffrent directions
Hunds Rule
P,D, and F sub lvls electrons must be distriubted befor pairing
Oxidation #
they are the charge an atom aquires when it becomes an ion when election are shared unequaliy
isotope
an atom that has the same number of protons diff # of neutrons