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1. An atom is made out of a sphere of
positive charges with negatively charged
electron embedded
in it.
2. Subatomic particle with a neutral charge
3. A tangible model
.
4. Matter is made of small indivisible
atoms.
5. Most of the mass is concentrated in the
center of atom. This tiny, dense,
positively charged core called a nucleus.
6. Positively charged particles