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