Across
- 3. negatively charged particles
- 4. a bond between a negatively charged anion and a positively charged cation
- 7. electrons on the outermost shell
- 10. group 3-12
- 11. the gas we breath
- 12. Used to consider how electrons are placed in a atom
- 16. the law of the periodic table
- 17. elements on the right side of the periodic table
- 19. outermost shell
- 21. positively charged particles
- 22. the table with all the elements
- 23. a molecule that contains 2 or more different atoms bonded together
- 25. have characteristics of both metal and non metals
- 26. 1 electron
- 27. group 1
Down
- 1. a molecule made up of a negatively charged anion and a positively charged cation
- 2. group of 2 or more atoms
- 5. the first creator of the periodic table
- 6. Positively charged ion
- 8. number of protons in a atom
- 9. gases at room temperature
- 13. won two noble prizes
- 14. elements on the left side of the periodic table
- 15. vertical lists of element
- 18. Horizontal rows in the periodic table
- 20. group 2
- 24. a negativly charged ion formed when an atom gains electron