1
Q
proton
A
positive charge
2
Q
nuetron
A
no charge
3
Q
electron
A
negative charge
4
Q
nucleus
A
positively charged center
5
Q
Democritus
A
-first guy to name the atom
6
Q
Dalton
A
-developed atomic theory
7
Q
Thompson
A
discovered plum pudding model
8
Q
Rutherford
A
gold foil experiment
9
Q
atomic number
A
number of protons
10
Q
atomic mass
A
protons + neutrons
11
Q
What are protons = to
A
electrons
12
Q
mass symbol
A
abbreviation-atomic mass
