1. Protons
2. Nucleus
3. Gold
4. North and South pole
5. Porcelain
6. John Dalton
7. Neutron g. best insulator
a. No charge
b. established modern atomic theory
c. Positive charge
d. center of an atom
e. best conductor
f. attract each other
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Answer:
1. d
2. a
3. g
4. f
5. e
6. b
7. d