Across
- 4. is a repeating pattern
- 6. named after a famous scientist
- 7. atomic mass 47.867
- 8. only thing not included in the periodic table element squares
- 9. number of neutrons is 48
Down
- 1. atomic number 82
- 2. element symbol Ce
- 3. named after a stated in the us.
- 4. a tabular array of the chemical elements organized by atomic number
- 5. atomic number 89