Across
- 3. primarily located on the upper right side
- 5. a negatively charged subatomic particles
- 8. primarily located on a diagonal line
- 9. a positively charged ion
- 10. a negatively charged ion
- 11. a column of elements in the periodic table
- 13. represents the total number of protons and neutrons
- 14. group 18 elements are called
- 15. a subatomic particles with no electrical charge
Down
- 1. how to measure of the size of its atom
- 2. the use of metals and nonmetals
- 4. the use of nonmetals only
- 6. a positively charged subatomic particles
- 7. primarily located on the left side and in the middle portion
- 12. horizontal rows of the periodic table