Across
- 2. they are malleable
- 5. metals group 1 in the periodic table
- 6. gas group 18 in the periodic table
- 9. They are rows in the periodic table
- 10. These are columns in the periodic table
Down
- 1. first element made
- 3. group 3-12 on the periodic table
- 4. group 17 in the periodic table
- 7. total number of protons and neutrons
- 8. it is a nonmetal