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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 particle