Across
- 4. Has a trunk
- 8. name for columns in the periodic table
- 11. table of chemical elements
- 12. elements that have fall between metals and non-metals
- 13. the protons, neutrons, and electrons are...
- 14. 11 protons and 12 neutrons
- 16. seventh on the periodic table
- 17. Man's best friend
- 19. the mass of the protons and neutron in the nucleus
- 20. non-metal with only one valence electron
- 22. type of element most common on the periodic table
- 24. number of neutrons in sulfur
- 25. Likes to chase mice
- 27. how the periodic table is arranged
- 28. neutral particle in the nucleus
- 30. sixth on the periodic table
- 31. group seventeen on the periodic table
Down
- 1. Large marsupial
- 2. group eighteen on the periodic table
- 3. Flying mammal
- 5. twelve on the periodic table
- 6. the way an element is represented
- 7. group 10, period 6
- 9. name for rows on the periodic table
- 10. nineteenth on the periodic table
- 15. Atoms of the same element that have different numbers of neutrons
- 18. eighth on the periodic table
- 21. negatively charged particle outside the nucleus
- 23. atomic mass of 6.94
- 26. positively charged particle in the nucleus
- 27. eighteen electrons
- 29. state of matter where the atoms are spread furthest apart