have learned about in previous exame Fill in the pussle with the cape term
Pased on the provi
* Pay attention to the number of letters in each word and the intersecting letters of
the adjacent words to determine the correct answers
ACROSS
3. Subatomic particle with a neutral
charge
5. A tangible model
7. Atomic model where atoms are
tiny indestructible spheres with no
internal structure
10. Negatively charged particle
DOWN
1. Proposed that most of the mass of
the atom is concentrated in a tiny,
positively charged nucleus at the
center, with negatively charged
electrons orbiting around it.
2. Atomic model where electrons
don't move around the nucleus in
orbits.
4. Proposed that electrons moved
around the nucleus in orbits of fixed
sizes and energies.
6. Building block of matter that
cannot be broken apart using any
chemical means
8. An atom is made out of a sphere
of positive charges with negatively
charged electron embedded in it
9. Positively charged particle