Across
- 3. of, pertaining to, exhibiting, or caused by radioactivity
- 6. purple group/ group 18/ two words
- 11. two words/ opposite of metals
- 13. group number 2/ three words
- 16. green group/ two words
- 17. an element that has both metallic & non-metal properties
- 18. brown group/ group 17
Down
- 1. a substance produced by or used in a chemical process.
- 2. name or term of a row going down
- 4. group number 1/ two words
- 5. tells the number of protons in a nucleus/ two words
- 7. any element of the actinide series
- 8. name or term of a row going across
- 9. group 16/ two words/ 6 valence electrons
- 10. any element of the lanthanide series
- 12. group 14/ yellow group
- 14. group 15/ two words
- 15. group 3-12/ two words