7 terms

Atoms

The Atom models, atomic numbers, atomic mass,etc.
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Dalton Model
Billord Ball Model
Atom was indivisible
Thompson Model
Plum Pudding Model
Atom was divisible
discovered e-
Rutherford Model
Atom contains small dense amount of positive energy
Atom has a nucleus
Atom is mostly empty space
Alpha
4
2He
Beta
0e
-1
Ion
Same element different number of electrons
Isotope
Same element different number of neutrons.