Across
- 4. Energy in the atom is _______
- 8. Electrons hold a ______ charge
- 10. What Chadwick discovered
- 11. Protons hold a _________ charge
Down
- 1. Schrodinger discovered electron ______
- 2. Arranged the periodic table in order of mass
- 3. First to theorize that matter was composed of something smaller
- 5. Are made up of atoms
- 6. Atoms ______ be created, divided or destroyed
- 7. Electrons orbit in ________
- 9. Arranged the periodic table according to number