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Chemistry

Chemistry unit 2

TermDefinition
Dalton created the solid sphere model, major discovery atoms are indivisible and cannot be split
JJ Thomson Plum Pudding model, founded electron being negative and overall atom is neutral, experiment was the cathode ray tube
Ruthorford nuclear model, nucleus was positive and founded proton and atoms were empty space with electrons being outside the nucleus
Bohr Planetary model, discovered electron moves outside nucleus
Shrodinger wave mechanical model. electrons move in waves outside nucleus
Atomic number bold number beneath symbol ='s the number of PROTONS
Atomic mass top left ='s the number of protons + neutrons
how to find Neutrons Atomic mass - atomic number
which two are the same Protons and Neutrons
Formula for AVG Atomic mass %abundance x mass divided by 100
Created by: Abdullahkhan
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