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8
H
10
Across:
4. Atomic model where electrons don't
move around the nucleus in orbits.
Electrons exist in specific energy levels
as a cloud.
8. Electrons reside in orbits. They move
between each shell when gaining or
losing energy.
9. Negatively charged particles
10. Building block of matter that cannot
be broken apart using any chemical
means
Down:
1. An atom is made out of a sphead
positive charges with negatively
electron embedded in it.
2. Subatomic particle with a neutral charg
3. A tangible model.
6 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.
Positively charged particles
7