Across
- 3. positively charged atomic particles found in the nucleus
- 4. gas gaseous element
- 6. cold, energy is adsorbed
- 7. heat, energy is released
- 8. partially conduct heat
- 9. includes protons, neutrons, and electrons
- 10. mixture of two or more different elements
- 11. conducts heat, malleable and ductile
- 13. outermost electron orbital
- 17. brittle, poor conductors of heat
- 19. the substance that is formed
Down
- 1. atoms that bond together
- 2. two metals that react
- 3. the rows on the periodic table
- 5. Russian chemist and inventor
- 12. the columns on the periodic table
- 14. negatively charged particles found in the nucleus
- 15. substance that is made entirely from one type of atom
- 16. no charge, atomic particles found in the nucleus
- 18. smallest part of an element cannot be broken down any farther