Across
- 1. Type of heterogeneous mixture
- 5. Same # protons, diff. # neutrons
- 6. Atomic Mass Unit
- 10. Changing of one element to another
- 11. Big nucleus splits into small
- 12. Solid material that conducts electricity
- 14. Gradual change moving across the periodic table
- 17. Cross between metal and nonmetal
- 19. Type of reaction that is self sustaining
- 20. Shows electrons orbiting nucleus
Down
- 2. Has a filled electron shell
- 3. Type of particle that increases the atomic number +1
- 4. Small nuclei combine into big
- 7. Discovered the Electron
- 8. Electrons in the outermost shell
- 9. 1/2 radioactive isotopes decay
- 13. Type of homogenous mixture
- 15. A type of bond formed by the transfer of electrons
- 16. Father of Nuclear Physics
- 18. Space around nucleus electrons are most likely found