Across
- 4. Group with atomic numbers 58-71
- 7. Has properties of metal and nonmetals
- 8. Relative atomic mass of 168.93
Down
- 1. Created the first periodic table
- 2. Atomic number 33
- 3. noble gases are highly _______
- 5. Group 16 period 4
- 6. Group 14 period 3